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Sample records for barcelona argonaut reactor

  1. Determination of one spectral index at the argonaut reactor

    International Nuclear Information System (INIS)

    Klawa, R.

    1973-01-01

    One spectral index at the Argonauta Reactor was determined. The Westcott formalism was employed assuming two components: Maxwellian and 1/E. The values of g(T) and s(T) were obtained from the Westcott definitions by means of the Breit - Wigner formula for the cross section. The r and T were determined for one point at the core of Argonauta Reactor. (author)

  2. Recovery of enriched Uranium (20% U-235) from wastes obtained in the preparation of fuel elements for argonaut type reactors

    Energy Technology Data Exchange (ETDEWEB)

    Uriarte, A.; Ramos, L.; Estrada, J.; Val, J. L. del

    1962-07-01

    Results obtained with the two following installations for recovering enriched uranium (20% U-235) from wastes obtained in the preparation of fuel elements for Argonaut type reactors are presented. Ion exchange unit to recover uranium form mother liquors resulting from the precipitation ammonium diuranate (ADU) from UO{sub 2}F{sub 2} solutions. Uranium recovery unit from solid wastes from the process of manufacture of fuel elements, consisting of a) waste dissolution, and b) extraction with 10% (v/v) TBP. (Author) 9 refs.

  3. Upgrading the Siemens Argonaut Reactor Graz with a digital monitoring system

    International Nuclear Information System (INIS)

    Froehlich, O.; Ninaus, W.

    1999-01-01

    This paper presents a modern design of a reactor monitoring system (MS) which was developed for a research reactor. This MS is using digital concepts, and it is more flexible than an analog MS, it co-operates better with the user, and it is a very helpful tool for a training-reactor in an university environment. The heart of the system is a process computer, and it was possible to access all important signals and functions of the original nuclear instrumentation by additional hardware. The monitoring software was written in C for the platform '32Bit-DOS-protected-mode' and shows on several high-resolution screen pages all the collected signals and the working conditions of the reactor. Moreover, all signals which are recorded on the random access memory can be saved to the hard disk of the computer and may thereby be used offline as well.(author)

  4. The evolution of animal Argonautes: evidence for the absence of antiviral AGO Argonautes in vertebrates.

    Science.gov (United States)

    Wynant, Niels; Santos, Dulce; Vanden Broeck, Jozef

    2017-08-23

    In addition to mediating regulation of endogenous gene expression, RNA interference (RNAi) in plants and invertebrates plays a crucial role in defense against viruses via virus-specific siRNAs. Different studies have demonstrated that the functional diversity of RNAi in animals is linked to the diversification of the Argonaute superfamily, central components of RISCs (RNA induced silencing complexes). The animal Argonaute superfamily is traditionally grouped into AGO and PIWI Argonautes. Yet, by performing phylogenetic analyses and determining the selective evolutionary pressure in the metazoan Argonaute superfamily, we provide evidence for the existence of three conserved Argonaute lineages between basal metazoans and protostomes, namely siRNA-class AGO, miRNA-class AGO and PIWI Argonautes. In addition, it shown that the siRNA-class AGO lineage is characterized by high rates of molecular evolution, suggesting a role in the arms race with viruses, while the miRNA-class AGOs display strong sequence conservation. Interestingly, we also demonstrate that vertebrates lack siRNA-class AGO proteins and that vertebrate AGOs display low rates of molecular evolution. In this way, we provide supportive evidence for the loss of the antiviral siRNA-class AGO group in vertebrates and discuss the consequence hereof on antiviral immunity and the use of RNAi as a loss of function tool in these animals.

  5. Effects of Argonaute on Gene Expression in Thermus thermophilus

    NARCIS (Netherlands)

    Swarts, D.C.; Koehorst, J.J.; Westra, E.R.; Schaap, P.J.; Oost, van der J.

    2015-01-01

    BACKGROUND: Eukaryotic Argonaute proteins mediate RNA-guided RNA interference, allowing both regulation of host gene expression and defense against invading mobile genetic elements. Recently, it has become evident that prokaryotic Argonaute homologs mediate DNA-guided DNA interference, and play a

  6. BARCELONA & Li-Fi

    OpenAIRE

    Verdú Leal, Adrián

    2016-01-01

    Project focused on the study of the possibility of introducing the Li-Fi technology in the city of Barcelona as a pioneering example of Smart City. Proyecto enfocado al estudio de la posibilidad de implantar la tecnología Li-Fi en la ciudad de Barcelona como ejemplo pionero de Smart City. Projecte enfocat a l'estudi de la possibilidad d'implantació la tecnologia Li-Fi a la ciudad de Barcelona com exemple innovador de Smart City.

  7. Time and myth: the Argonauts in Ljubljana

    Directory of Open Access Journals (Sweden)

    Ana María Sánchez Tarrío

    2012-12-01

    Full Text Available This papers gives a breif overview of research in its initial phases, which examines, from the perspective of the construction of national identity, the traditional theme of the enduring and timeless nature of Classical myths and in particular the ancient myth, which is the subject of Borges’s sharp irony in his short-story “The immortal”. The reception of the Argonauts myth in Slovenian culture, initiated by the work of Janez Vajkard or Johann Weichard Freiherr von Valvasor (1641–1693, offers a significant case-study, which also highlights the relevance of Humanist and Baroque culture in the critical history of European nationalism. Writing before the emergence in Europe of the Hegelian conception of “Volkgeist”, the polymath writer applied a humanistic approach to patriotic themes, revealing Slovene culture, hybrid from its origins, to the wider world. A characteristic feature of his approach was the fusion of earlier textual tradition with contemporary oral material. Both in Slovenia and in the rest of Europe the comparison of the nineteenth century treatment of material dealing with national identity with its earlier treatment and transmission by humanist writers highlights the importance of the 16th and 17th centuries in the configuration of the different national faces of Europe as well as the significant role of common Greek and Latin roots. As a result, the myth of the Argonauts in Ljubljana, against the backdrop of idealistic or essentialist nationalist faiths, has the not inconsiderable virtue of underscoring the contaminatio that is characteristic of the construction of national identity.

  8. BARCELONA: URBANSCAPES OF MODERNITY

    Directory of Open Access Journals (Sweden)

    Antoni Remesar

    2015-04-01

    The Do.Co.Mo.Mo’s. database, referring to Barcelona, lists 34 buildings that could be classified as rationalists and / or modern. According to other sources, we could reach fifty constructed buildings between the late 1920s and the end of the war in Spain. The article presents the results of a field work that, using different sources, has tried to to order and record the architectural production that can be considered modern / rationalist in Barcelona in the 1920s and 1930s

  9. DNA recognition by an RNA-guided bacterial Argonaute

    Science.gov (United States)

    Doudna, Jennifer A.

    2017-01-01

    Argonaute (Ago) proteins are widespread in prokaryotes and eukaryotes and share a four-domain architecture capable of RNA- or DNA-guided nucleic acid recognition. Previous studies identified a prokaryotic Argonaute protein from the eubacterium Marinitoga piezophila (MpAgo), which binds preferentially to 5′-hydroxylated guide RNAs and cleaves single-stranded RNA (ssRNA) and DNA (ssDNA) targets. Here we present a 3.2 Å resolution crystal structure of MpAgo bound to a 21-nucleotide RNA guide and a complementary 21-nucleotide ssDNA substrate. Comparison of this ternary complex to other target-bound Argonaute structures reveals a unique orientation of the N-terminal domain, resulting in a straight helical axis of the entire RNA-DNA heteroduplex through the central cleft of the protein. Additionally, mismatches introduced into the heteroduplex reduce MpAgo cleavage efficiency with a symmetric profile centered around the middle of the helix. This pattern differs from the canonical mismatch tolerance of other Argonautes, which display decreased cleavage efficiency for substrates bearing sequence mismatches to the 5′ region of the guide strand. This structural analysis of MpAgo bound to a hybrid helix advances our understanding of the diversity of target recognition mechanisms by Argonaute proteins. PMID:28520746

  10. Domain motions of Argonaute, the catalytic engine of RNA interference

    Directory of Open Access Journals (Sweden)

    Wall Michael E

    2007-11-01

    Full Text Available Abstract Background The Argonaute protein is the core component of the RNA-induced silencing complex, playing the central role of cleaving the mRNA target. Visual inspection of static crystal structures already has enabled researchers to suggest conformational changes of Argonaute that might occur during RNA interference. We have taken the next step by performing an all-atom normal mode analysis of the Pyrococcus furiosus and Aquifex aeolicus Argonaute crystal structures, allowing us to quantitatively assess the feasibility of these conformational changes. To perform the analysis, we begin with the energy-minimized X-ray structures. Normal modes are then calculated using an all-atom molecular mechanics force field. Results The analysis reveals low-frequency vibrations that facilitate the accommodation of RNA duplexes – an essential step in target recognition. The Pyrococcus furiosus and Aquifex aeolicus Argonaute proteins both exhibit low-frequency torsion and hinge motions; however, differences in the overall architecture of the proteins cause the detailed dynamics to be significantly different. Conclusion Overall, low-frequency vibrations of Argonaute are consistent with mechanisms within the current reaction cycle model for RNA interference.

  11. Physical Science in Barcelona

    Science.gov (United States)

    Roca-Rosell, Antoni; Roqué, Xavier

    2013-12-01

    We provide a tour of Barcelona, Catalonia, Spain, following four routes through the city and one elsewhere in the city and beyond, focusing on sites of importance in physics. Route 1 covers the Old Town, its Gothic Quarter, Plaça del Rei, Plaça de Sant Jaume, and Jewish Quarter. Route 2 identifies sites on and close to La Rambla, the main promenade in the city. Route 3 goes from the medieval shipyards to the Board of Commerce to Citadel Park. Route 4 concentrates on the Extension ( Eixample) and covers the restored University, the Industrial University, and the new campus of the University of Barcelona. Elsewhere in the city and beyond are the Fabra Observatory; the Plaça de les Glòries with its large steel sculpture depicting the meridian arc from Dunkirk to Barcelona; Montjuïc, the site of the National Art Museum of Catalonia; and the National Museum of Science and Technology in Terrassa.

  12. Barcelona A ja B = Barcelona A and B / Inga Raukas

    Index Scriptorium Estoniae

    Raukas, Inga, 1967-

    2006-01-01

    Barcelona arendamisest. Herzog ja de Meuroni büroos kavandatud Foorumi näitusekeskuses 2006. a. märtsist juuni alguseni avatud näitusest "Barcelona in Progress", mis püüab haarata eduloo ajalugu ja tulevikku. Bibliograafia lk. 71

  13. @City: technologising Barcelona

    Directory of Open Access Journals (Sweden)

    Jesús Rojas

    2007-05-01

    Full Text Available This article is about the concept of the contemporary city - the influence that technology has when one thinks about, plans and lives in a city. The conjunction of  technology and city reformulates customs and social practices; it can even determine the way one constitutes one's own identity. One can see how close the relation is between technology (specifically, TICS and the structures of the city in a wide variety of situations: in social interactions on the street, in transport, and in ways of buying, of working and entertainment. "@City" is a concept that very well reflects  the emergent properties of a current city, that is, the coexistence of a physical and a virtual urban space. The "22@Barcelona" project attempts to bring together different types of spaces. By combining the physical with the virtual, 22@Barcelona, as a neighborhood of @City,  creates an uncertain and blurred border between both spaces.The article also examines the impact that these spaces have on the psycho-social processes involved in the daily life of a traditionally working-class neighborhood, now strongly limited by technological boundaries.

  14. @City: technologising Barcelona

    Directory of Open Access Journals (Sweden)

    Rojas, Jesús

    2007-05-01

    Full Text Available This article is about the concept of the contemporary city - the influence that technology has when one thinks about, plans and lives in a city. The conjunction of technology and city reformulates customs and social practices; it can even determine the way one constitutes one's own identity. One can see how close the relation is between technology (specifically, TICS and the structures of the city in a wide variety of situations: in social interactions on the street, in transport, and in ways of buying, of working and entertainment. "@City" is a concept that very well reflects the emergent properties of a current city, that is, the coexistence of a physical and a virtual urban space. The "22@Barcelona" project attempts to bring together different types of spaces. By combining the physical with the virtual, 22@Barcelona, as a neighborhood of @City, creates an uncertain and blurred border between both spaces.The article also examines the impact that these spaces have on the psycho-social processes involved in the daily life of a traditionally working-class neighborhood, now strongly limited by technological boundaries.

  15. Paralympics--Barcelona 1992.

    Science.gov (United States)

    Reynolds, J; Stirk, A; Thomas, A; Geary, F

    1994-01-01

    The British Team at the 9th Paralympic Games in September 1992 in Barcelona comprised 151 men and 54 women athletes in a total of 15 sports. They were supported by a staff of 86 including a 12-strong medical team. The athletes were selected from the National Championships of the five disability organizations: British Wheelchair Sports Federation; British Blind Sport; Cerebral Palsy Sport; British Amputee Sports Association; and the British Les Autres Sports Association. This article outlines the organization and experience of the medical support team. The injury/illness profile was similar to those in able bodied sport. The team went on to achieve 40 gold, 47 silver and 41 bronze medals, maintaining third place on the medal table as achieved in Seoul in 1988. Images Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 PMID:8044485

  16. In Silico Identification, Phylogenetic and Bioinformatic Analysis of Argonaute Genes in Plants

    Directory of Open Access Journals (Sweden)

    Khaled Mirzaei

    2014-01-01

    Full Text Available Argonaute protein family is the key players in pathways of gene silencing and small regulatory RNAs in different organisms. Argonaute proteins can bind small noncoding RNAs and control protein synthesis, affect messenger RNA stability, and even participate in the production of new forms of small RNAs. The aim of this study was to characterize and perform bioinformatic analysis of Argonaute proteins in 32 plant species that their genome was sequenced. A total of 437 Argonaute genes were identified and were analyzed based on lengths, gene structure, and protein structure. Results showed that Argonaute proteins were highly conserved across plant kingdom. Phylogenic analysis divided plant Argonautes into three classes. Argonaute proteins have three conserved domains PAZ, MID and PIWI. In addition to three conserved domains namely, PAZ, MID, and PIWI, we identified few more domains in AGO of some plant species. Expression profile analysis of Argonaute proteins showed that expression of these genes varies in most of tissues, which means that these proteins are involved in regulation of most pathways of the plant system. Numbers of alternative transcripts of Argonaute genes were highly variable among the plants. A thorough analysis of large number of putative Argonaute genes revealed several interesting aspects associated with this protein and brought novel information with promising usefulness for both basic and biotechnological applications.

  17. Functional diversification of Argonautes in nematodes:an expanding universe

    OpenAIRE

    Buck, Amy H; Blaxter, Mark

    2013-01-01

    In the last decade, many diverse RNAi (RNA interference) pathways have been discovered that mediate gene silencing at epigenetic, transcriptional and post-transcriptional levels. The diversity of RNAi pathways is inherently linked to the evolution of Ago (Argonaute) proteins, the central protein component of RISCs (RNA-induced silencing complexes). An increasing number of diverse Agos have been identified in different species. The functions of most of these proteins are not yet known, but the...

  18. Prokaryotic Argonautes – variations on the RNA interference theme

    Directory of Open Access Journals (Sweden)

    John van der Oost

    2014-04-01

    Full Text Available The discovery of RNA interference (RNAi has been a major scientific breakthrough. This RNA-guided RNA interference system plays a crucial role in a wide range of regulatory and defense mechanisms in eukaryotes. The key enzyme of the RNAi system is Argonaute (Ago, an endo-ribonuclease that uses a small RNA guide molecule to specifically target a complementary RNA transcript. Two functional classes of eukaryotic Ago have been described: catalytically active Ago that cleaves RNA targets complementary to its guide, and inactive Ago that uses its guide to bind target RNA to down-regulate translation efficiency. A recent comparative genomics study has revealed that Argonaute-like proteins are also encoded by prokaryotic genomes. Interestingly, there is a lot of variation among these prokaryotic Argonaute (pAgo proteins with respect to domain architecture: some resemble the eukaryotic Ago (long pAgo containing a complete or disrupted catalytic site, while others are truncated versions (short pAgo that generally contain an incomplete catalytic site. Prokaryotic Agos with an incomplete catalytic site often co-occur with (predicted nucleases. Based on this diversity, and on the fact that homologs of other RNAi-related protein components (such as Dicer nucleases have never been identified in prokaryotes, it has been predicted that variations on the eukaryotic RNAi theme may occur in prokaryotes.

  19. Prokaryotic Argonautes - variations on the RNA interference theme

    Science.gov (United States)

    van der Oost, John; Swarts, Daan C.; Jore, Matthijs M.

    2014-01-01

    The discovery of RNA interference (RNAi) has been a major scientific breakthrough. This RNA-guided RNA interference system plays a crucial role in a wide range of regulatory and defense mechanisms in eukaryotes. The key enzyme of the RNAi system is Argonaute (Ago), an endo-ribonuclease that uses a small RNA guide molecule to specifically target a complementary RNA transcript. Two functional classes of eukaryotic Ago have been described: catalytically active Ago that cleaves RNA targets complementary to its guide, and inactive Ago that uses its guide to bind target RNA to down-regulate translation efficiency. A recent comparative genomics study has revealed that Argonaute-like proteins are also encoded by prokaryotic genomes. Interestingly, there is a lot of variation among these prokaryotic Argonaute (pAgo) proteins with respect to domain architecture: some resemble the eukaryotic Ago (long pAgo) containing a complete or disrupted catalytic site, while others are truncated versions (short pAgo) that generally contain an incomplete catalytic site. Prokaryotic Agos with an incomplete catalytic site often co-occur with (predicted) nucleases. Based on this diversity, and on the fact that homologs of other RNAi-related protein components (such as Dicer nucleases) have never been identified in prokaryotes, it has been predicted that variations on the eukaryotic RNAi theme may occur in prokaryotes. PMID:28357239

  20. 2015 Barcelona Asteroid Day

    CERN Document Server

    Gritsevich, Maria; Palme, Herbert

    2017-01-01

    This volume is a compilation of the research presented at the International Asteroid Day workshop which was celebrated at Barcelona on June 30th, 2015. The proceedings discuss the beginning of a new era in the study and exploration of the solar system’s minor bodies. International Asteroid Day commemorates the Tunguska event of June 30th, 1908. The workshop’s goal was to promote the importance of dealing proactively with impact hazards from space. Multidisciplinary experts contributed to this discussion by describing the nature of comets and asteroids along with their offspring, meteoroids. New missions to return material samples of asteroids back to Earth such as Osiris-REx and Hayabusa 2, as well as projects like AIM and DART which will test impact deflection techniques for Potentially Hazardous Asteroids encounters were also covered. The proceedings include both an outreach level to popularize impact hazards and a scientific character which covers the latest knowledge on these topics, as well as offeri...

  1. NEWS: GIREP in Barcelona

    Science.gov (United States)

    Dobson, Ken

    2000-11-01

    The 18th biannual conference of GIREP was held in Barcelona from 27 August to 1 September 2000. GIREP stands for Groupe International de Recherche sur l'Enseignement de la Physique. Some 400 delegates from 53 countries attended the conference, whose main concern was Physics Teacher Education beyond 2000. All contributions had to made in English. A conference like this needs to be singularly interesting to keep delegates away from the sunsoaked attractions and delights of one of the most exciting cities in the world - even if some of the excitement comes from wondering whether or not you are going to get your pocket picked. A typical conference day begins with two or three plenary lectures in the morning, with the afternoon given over to a set of nine parallel sessions. These sessions consisted of tightly timetabled 20 minute talks or other types of presentation. This meant that even the most dedicated delegate could get to little more than 10% of the over 200 sessions that were on offer in the afternoons. The event was organized by Catalonian locals working at the conference site, the Universitat Autonoma de Barcelona, and was superbly smooth. The list of organizations supporting the conference is too long to record, but ranged from the European Commission to Barcelona Science Museum. The UK can boast (if that is the right word) just 11 paid-up members of GIREP, which at about £10 per annum is hardly an expensive club - next year it goes up to 20 Euros - and the fee is worth it for the excellently produced book or CD-ROM of the conference proceedings. These contain a great deal of wisdom, plus the fair amount of infuriating rubbish that tends to be generated by educational research. I write here with all the prejudices of an aged ex-teacher, of course. The first morning lecture was given by Jon Ogborn, who used his recent work as organizer of the IoP post-16 Initiative to give some details of the Advancing Physics AS and A2 and make some general points about

  2. Effects of Argonaute on Gene Expression in Thermus thermophilus.

    Directory of Open Access Journals (Sweden)

    Daan C Swarts

    Full Text Available Eukaryotic Argonaute proteins mediate RNA-guided RNA interference, allowing both regulation of host gene expression and defense against invading mobile genetic elements. Recently, it has become evident that prokaryotic Argonaute homologs mediate DNA-guided DNA interference, and play a role in host defense. Argonaute of the bacterium Thermus thermophilus (TtAgo targets invading plasmid DNA during and after transformation. Using small interfering DNA guides, TtAgo can cleave single and double stranded DNAs. Although TtAgo additionally has been demonstrated to cleave RNA targets complementary to its DNA guide in vitro, RNA targeting by TtAgo has not been demonstrated in vivo.To investigate if TtAgo also has the potential to control RNA levels, we analyzed RNA-seq data derived from cultures of four T. thermophilus strain HB27 variants: wild type, TtAgo knockout (Δago, and either strain transformed with a plasmid. Additionally we determined the effect of TtAgo on expression of plasmid-encoded RNA and plasmid DNA levels.In the absence of exogenous DNA (plasmid, TtAgo presence or absence had no effect on gene expression levels. When plasmid DNA is present, TtAgo reduces plasmid DNA levels 4-fold, and a corresponding reduction of plasmid gene transcript levels was observed. We therefore conclude that TtAgo interferes with plasmid DNA, but not with plasmid-encoded RNA. Interestingly, TtAgo presence stimulates expression of specific endogenous genes, but only when exogenous plasmid DNA was present. Specifically, the presence of TtAgo directly or indirectly stimulates expression of CRISPR loci and associated genes, some of which are involved in CRISPR adaptation. This suggests that TtAgo-mediated interference with plasmid DNA stimulates CRISPR adaptation.

  3. Vaikne torm Barcelonas / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2009-01-01

    2008. a. sügisel Barcelonas toimunud 5. Euroopa maastikuarhitektuuri biennaalist "Torm ja tung", sümpoosionist. Rosa Barba nimelise võistluse peaauhinna võitis Kristine Jenseni büroo Taanist projektiga "Nicolai". Auhinnavõistlusel ja valitud tööde näitusel esindas Eestit Tallinna Harju tänava park

  4. Slicing-independent RISC activation requires the argonaute PAZ domain.

    Science.gov (United States)

    Gu, Shuo; Jin, Lan; Huang, Yong; Zhang, Feijie; Kay, Mark A

    2012-08-21

    Small RNAs regulate genetic networks through a ribonucleoprotein complex called the RNA-induced silencing complex (RISC), which, in mammals, contains at its center one of four Argonaute proteins (Ago1-Ago4). A key regulatory event in the RNA interference (RNAi) and microRNA (miRNA) pathways is Ago loading, wherein double-stranded small-RNA duplexes are incorporated into RISC (pre-RISC) and then become single-stranded (mature RISC), a process that is not well understood. The Agos contain an evolutionarily conserved PAZ (Piwi/Argonaute/Zwille) domain whose primary function is to bind the 3' end of small RNAs. We created multiple PAZ-domain-disrupted mutant Ago proteins and studied their biochemical properties and biological functionality in cells. We found that the PAZ domain is dispensable for Ago loading of slicing-competent RISC. In contrast, in the absence of slicer activity or slicer-substrate duplex RNAs, PAZ-disrupted Agos bound duplex small interfering RNAs, but were unable to unwind or eject the passenger strand and form functional RISC complexes. We have discovered that the highly conserved PAZ domain plays an important role in RISC activation, providing new mechanistic insights into how miRNAs regulate genes, as well as new insights for future design of miRNA- and RNAi-based therapeutics. Copyright © 2012 Elsevier Ltd. All rights reserved.

  5. The Argonauts in Slovenian Literature for Children and Youth

    Directory of Open Access Journals (Sweden)

    Milena Mileva Blažić

    2015-12-01

    Full Text Available Ljubljana has been associated with literature since its beginning. The founda- tion of the city Emona, for example, which – according to myth – dates back to the 13th  century BC, is associated with the myth of the Argonauts, Jason and the Golden Fleece. In the process of literary reception, the ancient myth evolved into the fairy tale type ATU 513A, according to H.-J. Uther’s motif index of fairy tales. The motif of the Golden Fleece became a symbol of mythic search beyond time and space in Slovenian literature, including children’s literature: in the picture books by Dane Zajc and Miroslav Šuput: The Argonauts (Argonavti, Anton Komat: The Lake Fairy (Vila Jezerka, Desa Muck: The Giant Hen (Kokoš velikanka, Andreja Peklar: The Boy with the Red Cap (Fant z rdečo kapico. It is used with different meanings and in combination with various mythic, fabulous and realistic animal symbols.

  6. A multitasking Argonaute: exploring the many facets of C. elegans CSR-1.

    Science.gov (United States)

    Wedeles, Christopher J; Wu, Monica Z; Claycomb, Julie M

    2013-12-01

    While initial studies of small RNA-mediated gene regulatory pathways focused on the cytoplasmic functions of such pathways, identifying roles for Argonaute/small RNA pathways in modulating chromatin and organizing the genome has become a topic of intense research in recent years. Nuclear regulatory mechanisms for Argonaute/small RNA pathways appear to be widespread, in organisms ranging from plants to fission yeast, Caenorhabditis elegans to humans. As the effectors of small RNA-mediated gene regulatory pathways, Argonaute proteins guide the chromatin-directed activities of these pathways. Of particular interest is the C. elegans Argonaute, chromosome segregation and RNAi deficient (CSR-1), which has been implicated in such diverse functions as organizing the holocentromeres of worm chromosomes, modulating germline chromatin, protecting the genome from foreign nucleic acid, regulating histone levels, executing RNAi, and inhibiting translation in conjunction with Pumilio proteins. CSR-1 interacts with small RNAs known as 22G-RNAs, which have complementarity to 25 % of the protein coding genes. This peculiar Argonaute is the only essential C. elegans Argonaute out of 24 family members in total. Here, we summarize the current understanding of CSR-1 functions in the worm, with emphasis on the chromatin-directed activities of this ever-intriguing Argonaute.

  7. ATLAS Overview Week 2009 Barcelona

    CERN Multimedia

    Claudia Marcelloni

    2009-01-01

    From October 5th to October 9th about 400 physicists from the ATLAS Collaboration met in Barcelona (Catalonia) to discuss the status of the experiment. The event was organized by the Institut de Física d'Altes Energies (IFAE), a member of the ATLAS Collaboration. Besides the Scientific program, few social events were organized, such as Reception at the Palau de Pedralbes, a visit to the Fundacio Joan Miro and a social dinner at Maremagnunm hall.

  8. Survey of research reactors

    International Nuclear Information System (INIS)

    Boek, H.; Villa, M.

    2004-06-01

    A survey of reasearch reactors based on the IAEA Nuclear Research Reactor Data Base (RRDB) was done. This database includes information on 273 operating research reactors ranging in power from zero to several hundred MW. From these 273 operating research reactors 205 reactors have a power level below 5 MW, the remaining 68 reactors range from 5 MW up to several 100 MW thermal power. The major reactor types with common design are: Siemens Unterrichtsreaktors, 1.2 Argonaut reactors, Slowpoke reactors, the miniature neutron source reactors, TRIGA reactors, material testing reactors and high flux reactors. Technical data such as: power, fuel material, fuel type, enrichment, maximum neutron flux density and experimental facilities for each reactor type as well as a description of their utilization in physics and chemistry, medicine and biology, academic research and teaching, training purposes (students and physicists, operating personnel), industrial application (neutron radiography, silicon neutron transmutation doping facilities) are provided. The geographically distribution of these reactors is also shown. As conclusions the author discussed the advantages (low capital cost, low operating cost, low burn up, simple to operate, safe, less restrictive containment and sitting requirements, versatility) and disadvantages (lower sensitivity for NAA, limited radioisotope production, limited use of neutron beams, limited access to the core, licensing) of low power research reactors. 24 figs., refs. 15, Tab. 1 (nevyjel)

  9. Reactor

    International Nuclear Information System (INIS)

    Toyama, Masahiro; Kasai, Shigeo.

    1978-01-01

    Purpose: To provide a lmfbr type reactor wherein effusion of coolants through a loop contact portion is reduced even when fuel assemblies float up, and misloading of reactor core constituting elements is prevented thereby improving the reactor safety. Constitution: The reactor core constituents are secured in the reactor by utilizing the differential pressure between the high-pressure cooling chamber and low-pressure cooling chamber. A resistance port is formed at the upper part of a connecting pipe, and which is connect the low-pressure cooling chamber and the lower surface of the reactor core constituent. This resistance part is formed such that the internal sectional area of the connecting pipe is made larger stepwise toward the upper part, and the cylinder is formed larger so that it profiles the inner surface of the connecting pipe. (Aizawa, K.)

  10. Reactor

    International Nuclear Information System (INIS)

    Ikeda, Masaomi; Kashimura, Kazuo; Inoue, Kazuyuki; Nishioka, Kazuya.

    1979-01-01

    Purpose: To facilitate the construction of a reactor containment building, whereby the inspections of the outer wall of a reactor container after the completion of the construction of the reactor building can be easily carried out. Constitution: In a reactor accommodated in a container encircled by a building wall, a space is provided between the container and the building wall encircling the container, and a metal wall is provided in the space so that it is fitted in the building wall in an attachable or detatchable manner. (Aizawa, K.)

  11. Evolution of structural and functional diversification among plant Argonautes.

    Science.gov (United States)

    Singh, Ravi K; Pandey, Shree P

    2015-01-01

    Argonautes (AGOs) are the effector proteins of the RNA-induced silencing (RISC) complex, formed during the phenomena of small-RNA mediated post-transcriptional gene silencing. AGOs are a large family of proteins; their number varies from a few (4 in Chlamydomonas reinhardtii) to many (18 in Oryza sativa) in plants. Genetics-guided analysis have demonstrated the roles of some of the AGOs during growth and development of plants. Biochemical studies have further revealed differences in functional specificities among AGOs. How the AGO family expanded in different plant species during the course of evolution is starting to emerge. We hypothesized that 4 classes of AGOs evolved after divergence of unicellular green algae when an ancestral AGO underwent duplication events. Evolution of multicellularity may have coincided with the diversification of AGOs. A comparative sequence and structure analysis of the plant AGOs, including those from the mosses and the unicellular algae, show not only conformational differences between those from lower and higher plants, but also functional divergence of important sites.

  12. ICOM Barcelona 2001: el domini

    Directory of Open Access Journals (Sweden)

    Glòria Munilla

    2002-04-01

    Full Text Available Entre els dies 1 i 6 de juliol de 2001 van tenir lloc al Palau de Congressos de Barcelona la XIX Conferència General i la XX Assemblea General de l'ICOM (International Conference of Museums. Els objectius fonamentals d'aquest organisme són debatre sobre les diferents problemàtiques que afecten actualment el món dels museus i cercar línies d'actuació i solucions per a projectar els centres culturals envers la societat que els genera i a la qual han de servir, i obtenir d'aquesta manera la rendibilitat de la seva funció.

  13. First Barcelona Conference on Epigenetics and Cancer

    Science.gov (United States)

    Palau, Anna; Perucho, Manuel; Esteller, Manel; Buschbeck, Marcus

    2014-01-01

    The Barcelona Conference on Epigenetics and Cancer (BCEC) entitled “Challenges, opportunities and perspectives” took place November 21–22, 2013 in Barcelona. The 2013 BCEC is the first edition of a series of annual conferences jointly organized by five leading research centers in Barcelona. These centers are the Institute of Predictive and Personalized Medicine of Cancer (IMPPC), the Biomedical Campus Bellvitge with its Program of Epigenetics and Cancer Biology (PEBC), the Centre for Genomic Regulation (CRG), the Institute for Biomedical Research (IRB), and the Molecular Biology Institute of Barcelona (IBMB). Manuel Perucho and Marcus Buschbeck from the Institute of Predictive and Personalized Medicine of Cancer put together the scientific program of the first conference broadly covering all aspects of epigenetic research ranging from fundamental molecular research to drug and biomarker development and clinical application. In one and a half days, 23 talks and 50 posters were presented to a completely booked out audience counting 270 participants. PMID:24413145

  14. Reactor physics in support of the naval nuclear propulsion programme

    International Nuclear Information System (INIS)

    Lisley, P.G.; Beeley, P.A.

    1994-01-01

    Reactor physics is a core component of all courses but in particular two postgraduate courses taught at the department in support of the naval nuclear propulsion programme. All of the courses include the following elements: lectures and problem solving exercises, laboratory work, experiments on the Jason zero power Argonaut reactor, demonstration of PWR behavior on a digital computer simulator and project work. This paper will highlight the emphasis on reactor physics in all elements of the education and training programme. (authors). 9 refs

  15. Convergent transmission of RNAi guide-target mismatch information across Argonaute internal allosteric network.

    Directory of Open Access Journals (Sweden)

    Thomas T Joseph

    Full Text Available In RNA interference, a guide strand derived from a short dsRNA such as a microRNA (miRNA is loaded into Argonaute, the central protein in the RNA Induced Silencing Complex (RISC that silences messenger RNAs on a sequence-specific basis. The positions of any mismatched base pairs in an miRNA determine which Argonaute subtype is used. Subsequently, the Argonaute-guide complex binds and silences complementary target mRNAs; certain Argonautes cleave the target. Mismatches between guide strand and the target mRNA decrease cleavage efficiency. Thus, loading and silencing both require that signals about the presence of a mismatched base pair are communicated from the mismatch site to effector sites. These effector sites include the active site, to prevent target cleavage; the binding groove, to modify nucleic acid binding affinity; and surface allosteric sites, to control recruitment of additional proteins to form the RISC. To examine how such signals may be propagated, we analyzed the network of internal allosteric pathways in Argonaute exhibited through correlations of residue-residue interactions. The emerging network can be described as a set of pathways emanating from the core of the protein near the active site, distributed into the bulk of the protein, and converging upon a distributed cluster of surface residues. Nucleotides in the guide strand "seed region" have a stronger relationship with the protein than other nucleotides, concordant with their importance in sequence selectivity. Finally, any of several seed region guide-target mismatches cause certain Argonaute residues to have modified correlations with the rest of the protein. This arises from the aggregation of relatively small interaction correlation changes distributed across a large subset of residues. These residues are in effector sites: the active site, binding groove, and surface, implying that direct functional consequences of guide-target mismatches are mediated through the

  16. Expression analysis of argonaute, Dicer-like, and RNA-dependent ...

    Indian Academy of Sciences (India)

    DEFANG GAN

    2Modern Agricultural Science and Technology Cooperative Extension Service Center of Mingguang City, Mingguang,. 239400, People's Republic of China. Abstract. Posttranscriptional control of gene expression can be achieved through RNA interference when the activities of Dicer-like. (DCL), argonaute (AGO) and ...

  17. The Dicer-like, Argonaute and RNA-dependent RNA polymerase ...

    Indian Academy of Sciences (India)

    The Dicer-like, Argonaute and RNA-dependent RNA polymerase gene families in Populus trichocarpa: gene structure, gene expression, phylogenetic analysis and evolution. Kang Zhao, Hualin Zhao, Zhu Chen, Lin Feng, Jie Ren, Ronghao Cai and Yan Xiang. J. Genet. 94, 317–321. Table 1. List of primer sequences of 29 ...

  18. Why Argonaute is needed to make microRNA target search fast and reliable

    NARCIS (Netherlands)

    Klein, M.; Chandradoss, S.D.; Depken, S.M.; Joo, C.

    2017-01-01

    MicroRNA (miRNA) interferes with the translation of cognate messenger RNA (mRNA) by finding, preferentially binding, and marking it for degradation. To facilitate the search process, Argonaute (Ago) proteins come together with miRNA, forming a dynamic search complex. In this review we use the

  19. Expression analysis of argonaute, Dicer-like, and RNA-dependent ...

    Indian Academy of Sciences (India)

    DEFANG GAN

    Argonaute family: tentacles that reach into RNAi, developmental control, stem cell maintenance, and tumorigenesis. Genes Dev. 16, 2733–2742. Chapman E. J. and Carrington J. C. 2007 Specialization and evo- lution of endogenous small RNA pathways. Nat. Rev. Genet. 8,. 884–896. Curtin S. J., Kantar M. B., Yoon H. W., ...

  20. Research and training reactors in the German Democratic Republic - basic data and ultilization

    International Nuclear Information System (INIS)

    Weibrecht, R.; Ziegenbein, D.; Knorr, J.; Meyer, K.

    1988-01-01

    A description of the following five research and training reactors in operation is given: (1) RFR, a light water cooled and moderated reactor of the Soviet type WWR-S, 10 MW in power; (2) RRR, a zero-power reactor of Argonaut type; (3) RAKE, a zero-power reactor of tank type; (4) AKR, a zero-power reactor of the homogeneous type; (5) ZLFR, a zero-power reactor of tank type. Utilization of the reactors is outlined for problems of reactor physics and neutronic research, for production of radioactive isotopes and of neutron-doped silicon, of activation analysis, and for education and training. (author)

  1. Reactor

    International Nuclear Information System (INIS)

    Fujibayashi, Toru.

    1976-01-01

    Object: To provide a boiling water reactor which can enhance a quake resisting strength and flatten power distribution. Structure: At least more than four fuel bundles, in which a plurality of fuel rods are arranged in lattice fashion which upper and lower portions are supported by tie-plates, are bundled and then covered by a square channel box. The control rod is movably arranged within a space formed by adjoining channel boxes. A spacer of trapezoidal section is disposed in the central portion on the side of the channel box over substantially full length in height direction, and a neutron instrumented tube is disposed in the central portion inside the channel box. Thus, where a horizontal load is exerted due to earthquake or the like, the spacers come into contact with each other to support the channel box and prevent it from abnormal vibrations. (Furukawa, Y.)

  2. Reactor

    International Nuclear Information System (INIS)

    Evans, R.M.

    1976-01-01

    Disclosed is a neutronic reactor having a moderator, coolant tubes traversing the moderator from an inlet end to an outlet end, bodies of material fissionable by neutrons of thermal energy disposed within the coolant tubes, and means for circulating water through said coolant tubes characterized by the improved construction wherein the coolant tubes are constructed of aluminum having an outer diameter of 1.729 inches and a wall thickness of 0.059 inch, and the means for circulating a liquid coolant through the tubes includes a source of water at a pressure of approximately 350 pounds per square inch connected to the inlet end of the tubes, and said construction including a pressure reducing orifice disposed at the inlet ends of the tubes reducing the pressure of the water by approximately 150 pounds per square inch. 1 claim, 16 figures

  3. Molecular Characterization and the Function of Argonaute3 in RNAi Pathway of Plutella xylostella

    Directory of Open Access Journals (Sweden)

    Muhammad Salman Hameed

    2018-04-01

    Full Text Available Argonaute (Ago protein family plays a key role in the RNA interference (RNAi process in different insects including Lepidopteran. However, the role of Ago proteins in the RNAi pathway of Plutella xylostella is still unknown. We cloned an Argonaute3 gene in P. xylostella (PxAgo3 with the complete coding sequence of 2832 bp. The encoded protein had 935 amino acids with an expected molecular weight of 108.9 kDa and an isoelectric point of 9.29. It contained a PAZ (PIWI/Argonaute/Zwile domain and PIWI (P-element-induced whimpy testes domain. PxAgo3 was classified into the Piwi subfamily of Ago proteins with a high similarity of 93.0% with Bombyx mori Ago3 (BmAgo3. The suppression of PxAgo3 by dsPxAgo3 was observed 3 h after treatment and was maintained until 24 h. Knockdown of PxAgo3 decreased the suppression level of PxActin by dsPxActin in P. xylostella cells, while overexpression of PxAgo3 increased the RNAi efficiency. Our results suggest that PxAgo3 play a key role in the double stranded RNA (dsRNA-regulated RNAi pathway in P. xylostella.

  4. Expression of human ARGONAUTE 2 inhibits endogenous microRNA activity in Arabidopsis

    Directory of Open Access Journals (Sweden)

    Ira eDeveson

    2013-04-01

    Full Text Available Plant and animal microRNA (miRNA pathways share many analogous components, the ARGONAUTE (AGO proteins being foremost among them. We sought to ascertain the degree of functional conservation shared by Homo sapiens ARGONAUTE 2 (HsAGO2 and Arabidopsis thaliana ARGONAUTE 1 (AtAGO1, which are the predominant AGO family members involved with miRNA activity in their respective species. Transgenic Arabidopsis plants expressing HsAGO2 were indistinguishable from counterparts over-expressing AtAGO1, each group exhibiting the morphological and molecular hallmarks of miRNA-pathway loss-of-function alleles. However, unlike AtAGO1, HsAGO2 was unable to rescue the ago1-27 allele. We conclude that, despite the evolutionary gulf between them, HsAGO2 is likely capable of interacting with some component/s of the Arabidopsis miRNA pathway, thereby perturbing its operation, although differences have arisen such that HsAGO2 alone is insufficient to confer efficient silencing of miRNA targets in planta.

  5. Barcelona - Talent Latent 09 / Ahto Sooaru

    Index Scriptorium Estoniae

    Sooaru, Ahto

    2010-01-01

    Fotonäitusest "Talent Latent 09" Barcelonas Arts Santa Monica kunstikeskuses. Loetletud näitusel eksponeeritud fotode autorid. Pikemalt Rafael Milach'i (sünd. 1978), Lucia Ganieva, Javier Marquerie Thomas'i (sünd. 1986), Amaury da Cunha (sünd. 1976) töödest. Lühidalt ka teistest näitustest Arts Santa Monica kunstikeskuses

  6. Protection of germline gene expression by the C. elegans Argonaute CSR-1.

    Science.gov (United States)

    Wedeles, Christopher J; Wu, Monica Z; Claycomb, Julie M

    2013-12-23

    In Caenorhabditis elegans, the Piwi-interacting small RNA (piRNA)-mediated germline surveillance system encodes more than 30,000 unique 21-nucleotide piRNAs, which silence a variety of foreign nucleic acids. What mechanisms allow endogenous germline-expressed transcripts to evade silencing by the piRNA pathway? One likely candidate in a protective mechanism is the Argonaute CSR-1, which interacts with 22G-small RNAs that are antisense to nearly all germline-expressed genes. Here, we use an in vivo RNA tethering assay to demonstrate that the recruitment of CSR-1 to a transcript licenses expression of the transcript, protecting it from piRNA-mediated silencing. Licensing occurs mainly at the level of transcription, as we observe changes in pre-mRNA levels consistent with transcriptional activation when CSR-1 is tethered. Furthermore, the recruitment of CSR-1 to a previously silenced locus transcriptionally activates its expression. Together, these results demonstrate a rare positive role for an endogenous Argonaute pathway in heritably licensing and protecting germline transcripts.

  7. No evidence of genome editing activity from Natronobacterium gregoryi Argonaute (NgAgo) in human cells.

    Science.gov (United States)

    Javidi-Parsijani, Parisa; Niu, Guoguang; Davis, Meghan; Lu, Pin; Atala, Anthony; Lu, Baisong

    2017-01-01

    The argonaute protein from the thermophilic bacterium Thermus thermophilus shows DNA-guided DNA interfering activity at high temperatures, complicating its application in mammalian cells. A recent work reported that the argonaute protein from Natronobacterium gregoryi (NgAgo) had DNA-guided genome editing activity in mammalian cells. We compared the genome editing activities of NgAgo and Staphylococcus aureus Cas9 (SaCas9) in human HEK293T cells side by side. EGFP reporter assays and DNA sequencing consistently revealed high genome editing activity from SaCas9. However, these assays did not demonstrate genome editing activity by NgAgo. We confirmed that the conditions allowed simultaneous transfection of the NgAgo expressing plasmid DNA and DNA guides, as well as heterologous expression of NgAgo in the HEK293T cells. Our data show that NgAgo is not a robust genome editing tool, although it may have such activity under other conditions.

  8. ICOM Barcelona 2001: el domini

    Directory of Open Access Journals (Sweden)

    Glòria Munilla

    2002-04-01

    Full Text Available Entre els dies 1 i 6 de juliol de 2001 van tenir lloc al Palau de Congressos de Barcelona la XIX Conferència General i la XX Assemblea General de l'ICOM (International Conference of Museums. Els objectius fonamentals d'aquest organisme són debatre sobre les diferents problemàtiques que afecten actualment el món dels museus i cercar línies d'actuació i solucions per a projectar els centres culturals envers la societat que els genera i a la qual han de servir, i obtenir d'aquesta manera la rendibilitat de la seva funció.

  9. Barcelona y La plaza del Diamante

    OpenAIRE

    Mirambel, Miquel

    2015-01-01

    Verano de 1928. En el entoldado de la plaça del Diamant de Barcelona, durante la fiesta mayor del barrio de Gràcia, Natalia conoce a Quimet, joven, atractivo, desconcertante y caprichoso propietario de una modesta carpintería, que empieza a llamarla Colometa, después que ésta ha abandonado a su novio Pere por él. Un año después se casan. Pronto nacerá el primer hijo, al que bautizaran con el nombre de Toni. Un día una paloma cae herida en su casa; esto dará pie a Quimet para construir un palo...

  10. Convergent evolution of argonaute-2 slicer antagonism in two distinct insect RNA viruses.

    Directory of Open Access Journals (Sweden)

    Joël T van Mierlo

    Full Text Available RNA interference (RNAi is a major antiviral pathway that shapes evolution of RNA viruses. We show here that Nora virus, a natural Drosophila pathogen, is both a target and suppressor of RNAi. We detected viral small RNAs with a signature of Dicer-2 dependent small interfering RNAs in Nora virus infected Drosophila. Furthermore, we demonstrate that the Nora virus VP1 protein contains RNAi suppressive activity in vitro and in vivo that enhances pathogenicity of recombinant Sindbis virus in an RNAi dependent manner. Nora virus VP1 and the viral suppressor of RNAi of Cricket paralysis virus (1A antagonized Argonaute-2 (AGO2 Slicer activity of RNA induced silencing complexes pre-loaded with a methylated single-stranded guide strand. The convergent evolution of AGO2 suppression in two unrelated insect RNA viruses highlights the importance of AGO2 in antiviral defense.

  11. A viral suppressor protein inhibits host RNA silencing by hooking up with Argonautes

    KAUST Repository

    Jin, Hailing

    2010-05-01

    RNA viruses are particularly vulnerable to RNAi-based defenses in the host, and thus have evolved specific proteins, known as viral suppressors of RNA silencing (VSRs), as a counterdefense. In this issue of Genes & Development, Azevedo and colleagues (pp. 904-915) discovered that P38, the VSR of Turnip crinkle virus, uses its glycine/tryptophane (GW) motifs as an ARGONAUTE (AGO) hook to attract and disarm the host\\'s essential effector of RNA silencing. Several GW motif-containing cellular proteins are known to be important partners of AGOs in RNA silencing effector complexes in yeast, plants, and animals. The GW motif appears to be a versatile and effective tool for regulating the activities of RNA silencing pathways, and the use of GW mimicry to compete for and inhibit host AGOs may be a strategy used by many pathogens to counteract host RNAi-based defenses. © 2010 by Cold Spring Harbor Laboratory Press.

  12. Feasibility study of introducing smart technologies in Barcelona Airport

    OpenAIRE

    Garcia Guiu, Anna

    2016-01-01

    The objectives of the project are to define and evaluate the diferent alternatives for implementing new Smart concepts and technologies in Barcelona Airport. The structure of the project activities will follow an initial approach (not exhaustive) consisting of: Context and background, justification of the project, assessment of Barcelona Airport baseline, identification of needs, technolgy Stae-of the art, definition of potential solutions and implementation scenarios, evaluation of altern...

  13. Construyendo la Barcelona creativa: nuevos actores, nuevas estrategias

    Directory of Open Access Journals (Sweden)

    Montserrat Pareja-Eastaway

    2010-12-01

    Full Text Available Building A creative Barcelona: new actors, new strategies.Barcelona is under the international spotlight. The city that triumphed with the organisation of the Olympic Games in 1992 now wants to become a 21st Century creative city. In order to achieve this goal, the city must establish conditions that facilitate the emergence of a shared discourse around its ability to become an attractive city for creative talent and for businesses. The recognition of the historical-economic heritage, as a starting point for the creative city, along with the driving role played by culture in the generation of a exclusive and distinctive experience, turnBarcelona into a unique city. However, this is not sufficient. The participation and involvement of all the actors in a shared strategy pose significant challenges to Barcelona, as does the need to minimise the negative effects that inevitably accompany success. Companies, institutions and citizens constitute the city’s best assets: they must work in partnership and take advantage of the synergies generated amongst them. Consensus and participation are more than mere utopias in Barcelona: they have become requirements for the city of tomorrow. Moreover, leadership in Barcelona is largely left to public initiative: the emergence of linkages across the needs of the various creative sectors, based on public intervention mechanisms is the best way to ensure success.

  14. The pergolas of Barcelona Forum, an example of sustainable architecture; Las pergonas de Barcelona Ejemplo de arquitectura sostenible

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    The use of technologies FV in Barcelona Forum Claims the goal of reducing the greenhouse gases emission to the atmosphere. The pergolas allow reducing the emission of approximately 440 Mg/year of CO{sub 2}.

  15. el caso de la ciudad de Barcelona

    Directory of Open Access Journals (Sweden)

    Jordi Bayona i Carrasco

    2007-01-01

    Full Text Available El análisis de la estructura del hogar de la población de nacionalidad extranjera derivado del Censo de 2001 nos informará, por encima de otros fenómenos, de la etapa del proceso migratorio en que se encuentra esta población, y del desarrollo de estrategias y redes de apoyo en un primer estadio de incorporación. Además, las diferencias territoriales pueden explicar el papel del territorio en el proceso de llegada e inserción de la población extranjera. Con este propósito, se presenta el caso de la ciudad de Barcelona, con una población de nacionalidad extranjera que muestra una estructura del hogar compleja, relacionada con la reciente llegada a la ciudad, y donde las diferencias por distritos en la estructura del hogar nos informan de aquellos territorios que actúan como puerta de entrada a la ciudad.

  16. ALG-5 is a miRNA-associated Argonaute required for proper developmental timing in the Caenorhabditis elegans germline.

    Science.gov (United States)

    Brown, Kristen C; Svendsen, Joshua M; Tucci, Rachel M; Montgomery, Brooke E; Montgomery, Taiowa A

    2017-09-06

    Caenorhabditis elegans contains 25 Argonautes, of which, ALG-1 and ALG-2 are known to primarily interact with miRNAs. ALG-5 belongs to the AGO subfamily of Argonautes that includes ALG-1 and ALG-2, but its role in small RNA pathways is unknown. We analyzed by high-throughput sequencing the small RNAs associated with ALG-5, ALG-1 and ALG-2, as well as changes in mRNA expression in alg-5, alg-1 and alg-2 mutants. We show that ALG-5 defines a distinct branch of the miRNA pathway affecting the expression of genes involved in immunity, defense, and development. In contrast to ALG-1 and ALG-2, which associate with most miRNAs and have general roles throughout development, ALG-5 interacts with only a small subset of miRNAs and is specifically expressed in the germline where it localizes alongside the piRNA and siRNA machinery at P granules. alg-5 is required for optimal fertility and mutations in alg-5 lead to a precocious transition from spermatogenesis to oogenesis. Our results provide a near-comprehensive analysis of miRNA-Argonaute interactions in C. elegans and reveal a new role for miRNAs in the germline. © The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.

  17. The cricket paralysis virus suppressor inhibits microRNA silencing mediated by the Drosophila Argonaute-2 protein.

    Directory of Open Access Journals (Sweden)

    Corinne Besnard-Guérin

    Full Text Available Small RNAs are potent regulators of gene expression. They also act in defense pathways against invading nucleic acids such as transposable elements or viruses. To counteract these defenses, viruses have evolved viral suppressors of RNA silencing (VSRs. Plant viruses encoded VSRs interfere with siRNAs or miRNAs by targeting common mediators of these two pathways. In contrast, VSRs identified in insect viruses to date only interfere with the siRNA pathway whose effector Argonaute protein is Argonaute-2 (Ago-2. Although a majority of Drosophila miRNAs exerts their silencing activity through their loading into the Argonaute-1 protein, recent studies highlighted that a fraction of miRNAs can be loaded into Ago-2, thus acting as siRNAs. In light of these recent findings, we re-examined the role of insect VSRs on Ago-2-mediated miRNA silencing in Drosophila melanogaster. Using specific reporter systems in cultured Schneider-2 cells and transgenic flies, we showed here that the Cricket Paralysis virus VSR CrPV1-A but not the Flock House virus B2 VSR abolishes silencing by miRNAs loaded into the Ago-2 protein. Thus, our results provide the first evidence that insect VSR have the potential to directly interfere with the miRNA silencing pathway.

  18. Measurement of the epithermal neutron flux of the Argonauta reactor by the Sandwich method

    International Nuclear Information System (INIS)

    Nascimento, H.M.

    1973-01-01

    A common method of obtaining information about the neutron spectrum in the energy range of 1 eV to a few keV is by using resonance sandwich detectors. A sandwich detector is usually made up of three foils placed one on top of the other, each having the same thickness and being made of the same material which has a pronounced absorption resonance. To make an adequate evaluation, the sandwich method was compared with one using an isolated detector. The results obtained from approximate theoretical calculations were checked experimentally, using In, Au and Mn foils, in an isotropic 1/E flux in the Argonaut Reactor at I.E.N. As practical application of this method, the deviation from a 1/E spectrum of the epithermal neutron flux in the core and external graphite reflector of the Argonaut Reactor has been measured with the sandwich foils previously calibrated in a 1/E spectrum. (author)

  19. The C. elegans CSR-1 argonaute pathway counteracts epigenetic silencing to promote germline gene expression.

    Science.gov (United States)

    Seth, Meetu; Shirayama, Masaki; Gu, Weifeng; Ishidate, Takao; Conte, Darryl; Mello, Craig C

    2013-12-23

    Organisms can develop adaptive sequence-specific immunity by reexpressing pathogen-specific small RNAs that guide gene silencing. For example, the C. elegans PIWI-Argonaute/piwi-interacting RNA (piRNA) pathway recruits RNA-dependent RNA polymerase (RdRP) to foreign sequences to amplify a transgenerational small-RNA-induced epigenetic silencing signal (termed RNAe). Here, we provide evidence that, in addition to an adaptive memory of silenced sequences, C. elegans can also develop an opposing adaptive memory of expressed/self-mRNAs. We refer to this mechanism, which can prevent or reverse RNAe, as RNA-induced epigenetic gene activation (RNAa). We show that CSR-1, which engages RdRP-amplified small RNAs complementary to germline-expressed mRNAs, is required for RNAa. We show that a transgene with RNAa activity also exhibits accumulation of cognate CSR-1 small RNAs. Our findings suggest that C. elegans adaptively acquires and maintains a transgenerational CSR-1 memory that recognizes and protects self-mRNAs, allowing piRNAs to recognize foreign sequences innately, without the need for prior exposure

  20. Elucidating Mechanisms of Molecular Recognition Between Human Argonaute and miRNA Using Computational Approaches

    KAUST Repository

    Jiang, Hanlun

    2016-12-06

    MicroRNA (miRNA) and Argonaute (AGO) protein together form the RNA-induced silencing complex (RISC) that plays an essential role in the regulation of gene expression. Elucidating the underlying mechanism of AGO-miRNA recognition is thus of great importance not only for the in-depth understanding of miRNA function but also for inspiring new drugs targeting miRNAs. In this chapter we introduce a combined computational approach of molecular dynamics (MD) simulations, Markov state models (MSMs), and protein-RNA docking to investigate AGO-miRNA recognition. Constructed from MD simulations, MSMs can elucidate the conformational dynamics of AGO at biologically relevant timescales. Protein-RNA docking can then efficiently identify the AGO conformations that are geometrically accessible to miRNA. Using our recent work on human AGO2 as an example, we explain the rationale and the workflow of our method in details. This combined approach holds great promise to complement experiments in unraveling the mechanisms of molecular recognition between large, flexible, and complex biomolecules.

  1. Expression of microRNA-184 in keratinocytes represses argonaute 2.

    Science.gov (United States)

    Roberts, Julian C; Warren, Richard B; Griffiths, Christopher E M; Ross, Kehinde

    2013-12-01

    Interleukin-22 (IL-22) is a proinflammatory cytokine that has been associated with the pathogenesis of inflammatory skin disorders. However, the impact of IL-22 on microRNA (miRNA) expression in epidermal keratinocytes is unknown. Here we show that IL-22 induces miR-184 in reconstituted human epidermis (RHE) and in the HaCaT keratinocyte cell line. Exposure to IL-22 increased miR-184 expression 8- and 15-fold in RHE and HaCaT cells, respectively. Oncostatin M, an unrelated proinflammatory cytokine, also raised miR-184 expression in RHE and HaCaT keratinocytes. Pharmacologic and genetic inhibition demonstrated that cytokine-induced expression of miR-184 was mediated by signal transducer and activation of transcription 3 (STAT3). Argonaute 2 (AGO2), a member of the RNA-induced silencing complex (RISC), is a predicted miR-184 target. Using protein, messenger RNA and reporter analyses, we found that miR-184 regulates the expression of AGO2. We conclude that cytokine-induced miR-184 attenuates AGO2 expression in keratinocytes. Copyright © 2013 Wiley Periodicals, Inc.

  2. Preferential microRNA targeting revealed by in vivo competitive binding and differential Argonaute immunoprecipitation.

    Science.gov (United States)

    Werfel, Stanislas; Leierseder, Simon; Ruprecht, Benjamin; Kuster, Bernhard; Engelhardt, Stefan

    2017-09-29

    MicroRNAs (miRNAs) have been described to simultaneously inhibit hundreds of targets, albeit to a modest extent. It was recently proposed that there could exist more specific, exceptionally strong binding to a subgroup of targets. However, it is unknown, whether this is the case and how such targets can be identified. Using Argonaute2-ribonucleoprotein immunoprecipitation and in vivo competitive binding assays, we demonstrate for miRNAs-21, -199-3p and let-7 exceptional regulation of a subset of targets, which are characterized by preferential miRNA binding. We confirm this finding by analysis of independent quantitative proteome and transcriptome datasets obtained after miRNA silencing. Our data suggest that mammalian miRNA activity is guided by preferential binding of a small set of 3'-untranslated regions, thereby shaping a steep gradient of regulation between potential targets. Our approach can be applied for transcriptome-wide identification of such targets independently of the presence of seed complementary sequences or other predictors. © The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.

  3. Novel Insights into Guide RNA 5′-Nucleoside/Tide Binding by Human Argonaute 2

    Science.gov (United States)

    Kalia, Munishikha; Willkomm, Sarah; Claussen, Jens Christian; Restle, Tobias; Bonvin, Alexandre M. J. J.

    2015-01-01

    The human Argonaute 2 (hAgo2) protein is a key player of RNA interference (RNAi). Upon complex formation with small non-coding RNAs, the protein initially interacts with the 5′-end of a given guide RNA through multiple interactions within the MID domain. This interaction has been reported to show a strong bias for U and A over C and G at the 5′-position. Performing molecular dynamics simulations of binary hAgo2/OH–guide–RNA complexes, we show that hAgo2 is a highly flexible protein capable of binding to guide strands with all four possible 5′-bases. Especially, in the case of C and G this is associated with rather large individual conformational rearrangements affecting the MID, PAZ and even the N-terminal domains to different degrees. Moreover, a 5′-G induces domain motions in the protein, which trigger a previously unreported interaction between the 5′-base and the L2 linker domain. Combining our in silico analyses with biochemical studies of recombinant hAgo2, we find that, contrary to previous observations, hAgo2 is capable of functionally accommodating guide strands regardless of the 5′-base. PMID:26712743

  4. Understanding the core of RNA interference: The dynamic aspects of Argonaute-mediated processes

    KAUST Repository

    Zhu, Lizhe

    2016-10-05

    At the core of RNA interference, the Argonaute proteins (Ago) load and utilize small guide nucleic acids to silence mRNAs or cleave foreign nucleic acids in a sequence specific manner. In recent years, based on extensive structural studies of Ago and its interaction with the nucleic acids, considerable progress has been made to reveal the dynamic aspects of various Ago-mediated processes. Here we review these novel insights into the guide-strand loading, duplex unwinding, and effects of seed mismatch, with a focus on two representative Agos, the human Ago 2 (hAgo2) and the bacterial Thermus thermophilus Ago (TtAgo). In particular, comprehensive molecular simulation studies revealed that although sharing similar overall structures, the two Agos have vastly different conformational landscapes and guide-strand loading mechanisms because of the distinct rigidity of their L1-PAZ hinge. Given the central role of the PAZ motions in regulating the exposure of the nucleic acid binding channel, these findings exemplify the importance of protein motions in distinguishing the overlapping, yet distinct, mechanisms of Ago-mediated processes in different organisms.

  5. Santiago Ramón y Cajal a Barcelona

    OpenAIRE

    Rocha Barral, Elvira

    2008-01-01

    L’estada de Santiago Ramón y Cajal a Barcelona va coincidir amb un fructífer període de la seva vida durant el qual, malgrat totes les dificultats, va aconseguir el reconeixement de la comunitat científica internacional.

  6. Performing Home in Barcelona: A Practice-Based Photo Essay

    Science.gov (United States)

    Pons, Esther Belvis

    2018-01-01

    During the winter of 2016, I carried out an artistic project in Barcelona entitled 'Performing Home' that aimed to explore the affective and social challenges that artists in political asylum or refuge cope with. The project began with a simple question: "where in public spaces do artists in asylum feel 'at home'?" It explored how public…

  7. Perspectives of Security Ensuring within the Framework of Barcelona Process

    Directory of Open Access Journals (Sweden)

    T N Kirabaev

    2009-06-01

    Full Text Available Barcelona process was aimed to become an important mechanism in the realization of ideas of peace, stability and security ensuring in the Mediterranean Sea region. Cooperation in the sphere of security ensuring means openness of the regional states, social and economic reforms, human rights protection. The article deals with the problem of security ensuring by nonmilitary means.

  8. Climate change, income and happiness: An empirical study for Barcelona

    NARCIS (Netherlands)

    Sekulova, F.; van den Bergh, J.C.J.M.

    2013-01-01

    The present article builds upon the results of an empirical study exploring key factors which determine life satisfaction in Barcelona. Based on a sample of 840 individuals we first look at the way changes in income, notably income reductions, associated with the current economic situation in Spain,

  9. Jean Nouveli supermodernism Barcelonas / Raili Seppänen

    Index Scriptorium Estoniae

    Seppänen, Raili

    2005-01-01

    2005. a. suvel valmivast prantsuse arhitekti Jean Nouveli (sünd. 1945) projekteeritud tornmajast Torre Agbar Barcelonas Avinguda Diagonal 209-211. Abiks hispaania arhitekt Fermin Vazquez arhitektibüroost b720 Arquitectura S.L. Jean Nouveli tuntud projekte. Ill.: J. Nouveli portreefoto, tornmaja välisvaade

  10. Argonaute 2 and nasopharyngeal carcinoma: a genetic association study and functional analysis

    International Nuclear Information System (INIS)

    Li, Peiyao; Meng, Jinfeng; Zhai, Yun; Zhang, Hongxing; Yu, Lixia; Wang, Zhifu; Zhang, Xiaoai; Cao, Pengbo; Chen, Xi; Han, Yuqing; Zhang, Yang; Chen, Huipeng; Ling, Yan; Li, Yuxia; Cui, Ying; Bei, Jin-Xin; Zeng, Yi-Xin; He, Fuchu; Zhou, Gangqiao

    2015-01-01

    Argonaute 2 (AGO2), a central component of RNA-induced silencing complex, plays critical roles in cancer. We examined whether the single nucleotide polymorphisms (SNPs) of AGO2 were related to the risk of nasopharyngeal carcinoma (NPC). Twenty-five tag SNPs within AGO2 were genotyped in Guangxi population consisting of 855 NPC patients and 1036 controls. The SNPs significantly associated with NPC were further replicated in Guangdong population consisting of 996 NPC patients and 972 controls. Functional experiments were conducted to examine the biologic roles of AGO2 in NPC. A significantly increased risk of advanced lymph node metastasis of NPC was identified for the AGO2 rs3928672 GA + AA genotype compared with GG genotype in both the Guangxi and Guangdong populations (combined odd ratio = 2.08, 95 % confidence interval = 1.44-3.01, P = 8.60 × 10 −5 ). Moreover, the AGO2 protein expression levels of rs3928672 GA + AA genotype carriers were higher than the GG genotype carriers in the NPC tissues (P = 0.041), and AGO2 was significantly over-expressed in NPC tissues compared with non-cancerous nasopharyngeal tissues (P = 0.011). In addition, AGO2 knockdown reduced cell proliferation, induced apoptosis, and inhibited migration of NPC cells. Furthermore, gene expression microarray showed that genes altered following AGO2 knockdown were clustered in tumorigenesis and metastasis relevant pathways. Our findings suggest that the genetic polymorphism in AGO2 may be a risk factor for the advanced lymph node metastasis of NPC in Chinese populations, and AGO2 acts as an oncogene in the development of NPC. The online version of this article (doi:10.1186/s12885-015-1895-4) contains supplementary material, which is available to authorized users

  11. On the role of some ARGONAUTE proteins in meiosis and DNA repair in Arabidopsis thaliana

    Directory of Open Access Journals (Sweden)

    Cecilia eOliver

    2014-05-01

    Full Text Available In plants, small non-coding RNAs (≈20-30 nt play a major role in a gene regulation mechanism that controls development, maintains heterochromatin and defends against viruses. However, their possible role in somatic and germline cell divisions still remains to be ascertained. ARGONAUTE (AGO proteins are key players in the different small RNA pathways. Arabidopsis contains ten AGO proteins belonging to three distinct phylogenetic clades based on amino acid sequence, namely: AGO1/AGO5/AGO10, AGO2/AGO3/AGO7, and AGO4/AGO6/AGO8/AGO9. To gain new insights on the role of some AGO proteins, we have focused our attention in AGO2, AGO5 and AGO9 by means of the analysis of plants carrying mutations in the corresponding genes. AGO2 plays a role in the natural cis-antisense (nat-siRNA pathway and is required for an efficient DNA repair. On the other hand, AGO5, involved in miRNA (microRNA-directed target cleavage, and AGO9, involved in RNA-directed DNA methylation (RdDM, are highly enriched in germline. On these grounds, we have analyzed the effects of these proteins on the meiotic process and also on DNA repair. It was confirmed that AGO2 is involved in DNA repair, also in ago2-1 the mean cell chiasma frequency in pollen mother cells (PMCs was increased respect to the wild-type. ago5-4 showed a delay in germination time and a slight decrease in fertility, however the meiotic process and chiasma levels were normal. Meiosis in PMCs of ago9-1 was characterized by a high frequency of chromosome interlocks from pachytene to metaphase I, but chiasma frequency and fertility were normal. Also, genotoxicity assays have confirmed that AGO9 is also involved in somatic DNA repair.

  12. HIV-1 RNAs are Not Part of the Argonaute 2 Associated RNA Interference Pathway in Macrophages.

    Directory of Open Access Journals (Sweden)

    Valentina Vongrad

    Full Text Available MiRNAs and other small noncoding RNAs (sncRNAs are key players in post-transcriptional gene regulation. HIV-1 derived small noncoding RNAs (sncRNAs have been described in HIV-1 infected cells, but their biological functions still remain to be elucidated. Here, we approached the question whether viral sncRNAs may play a role in the RNA interference (RNAi pathway or whether viral mRNAs are targeted by cellular miRNAs in human monocyte derived macrophages (MDM.The incorporation of viral sncRNAs and/or their target RNAs into RNA-induced silencing complex was investigated using photoactivatable ribonucleoside-induced cross-linking and immunoprecipitation (PAR-CLIP as well as high-throughput sequencing of RNA isolated by cross-linking immunoprecipitation (HITS-CLIP, which capture Argonaute2-bound miRNAs and their target RNAs. HIV-1 infected monocyte-derived macrophages (MDM were chosen as target cells, as they have previously been shown to express HIV-1 sncRNAs. In addition, we applied small RNA deep sequencing to study differential cellular miRNA expression in HIV-1 infected versus non-infected MDMs.PAR-CLIP and HITS-CLIP data demonstrated the absence of HIV-1 RNAs in Ago2-RISC, although the presence of a multitude of HIV-1 sncRNAs in HIV-1 infected MDMs was confirmed by small RNA sequencing. Small RNA sequencing revealed that 1.4% of all sncRNAs were of HIV-1 origin. However, neither HIV-1 derived sncRNAs nor putative HIV-1 target sequences incorporated into Ago2-RISC were identified suggesting that HIV-1 sncRNAs are not involved in the canonical RNAi pathway nor is HIV-1 targeted by this pathway in HIV-1 infected macrophages.

  13. Geodetic infrastructure at the Barcelona harbour for sea level monitoring

    Science.gov (United States)

    Martinez-Benjamin, Juan Jose; Gili, Josep; Lopez, Rogelio; Tapia, Ana; Pros, Francesc; Palau, Vicenc; Perez, Begona

    2015-04-01

    The presentation is directed to the description of the actual geodetic infrastructure of Barcelona harbour with three tide gauges of different technologies for sea level determination and contribution to regional sea level rise and understanding past and present sea level rise in the Barcelona harbour. It is intended that the overall system will constitute a CGPS Station of the ESEAS (European Sea Level) and TIGA (GPS Tide Gauge Benchmark Monitoring) networks. At Barcelona harbour there is a MIROS radar tide gauge belonging to Puertos del Estado (Spanish Harbours).The radar sensor is over the water surface, on a L-shaped structure which elevates it a few meters above the quay shelf. 1-min data are transmitted to the ENAGAS Control Center by cable and then sent each 1 min to Puertos del Estado by e-mail. The information includes wave forescast (mean period, significant wave height, sea level, etc.This sensor also measures agitation and sends wave parameters each 20 min. There is a GPS station Leica Geosystems GRX1200 GG Pro and antenna AX 1202 GG. The Control Tower of the Port of Barcelona is situated in the North dike of the so-called Energy Pier in the Barcelona harbor (Spain). This tower has different kind of antennas for navigation monitoring and a GNSS permanent station. As the tower is founded in reclaimed land, and because its metallic structure, the 50 m building is subjected to diverse movements, including periodic fluctuations due to temperature changes. In this contribution the 2009, 2011, 2012, 2013 and 2014 the necessary monitoring campaigns are described. In the framework of a Spanish Space Project, the instrumentation of sea level measurements has been improved by providing the Barcelona site with a radar tide gauge Datamar 2000C from Geonica S.L. in June 2014 near an acoustic tide gauge from the Barcelona Harbour installed in 2013. Precision levelling has been made several times in the last two years because the tower is founded in reclaimed land and

  14. miRNA-target chimeras reveal miRNA 3'-end pairing as a major determinant of Argonaute target specificity

    DEFF Research Database (Denmark)

    Moore, Michael J; Scheel, Troels K H; Luna, Joseph M

    2015-01-01

    AGO HITS-CLIP strategy termed CLEAR (covalent ligation of endogenous Argonaute-bound RNAs)-CLIP, which enriches miRNAs ligated to their endogenous mRNA targets. CLEAR-CLIP mapped ∼130,000 endogenous miRNA-target interactions in mouse brain and ∼40,000 in human hepatoma cells. Motif and structural...... analysis define expanded pairing rules for over 200 mammalian miRNAs. Most interactions combine seed-based pairing with distinct, miRNA-specific patterns of auxiliary pairing. At some regulatory sites, this specificity confers distinct silencing functions to miRNA family members with shared seed sequences...

  15. Plan for Moata reactor decommissioning, ANSTO

    International Nuclear Information System (INIS)

    Kim, S.

    2003-01-01

    'Moata' is an Argonaut type 100 kW reactor that was operated by Australian Nuclear Science and Technology Organisation for 34 years from 1961 to 1995. It was initially used as a reactor-physics research tool and a training reactor but the scope of operations was extended to include activation analysis and neutron radiography from the mid 1970s. In 1995, the Moata reactor was shutdown on the grounds that its continued operation could no longer be economically justified. All the fuel (HEU) was unloaded to temporary storage and secured in 1995, followed by drainage of the demineralised water (primary coolant) from the reactor in 1996 and complete removal of electrical cables in 1998. The Reactor Control Room has been renovated into a modern laboratory. The reactor structure is still intact and kept under safe storage. Various options for decommissioning strategies have been considered and evaluated. So far, 'Immediate Dismantling' is considered to be the most desirable option, however, the timescale for actual dismantling needs to take account of the establishment of the national radioactive repository. This paper describes the dismantling options and techniques considered along with examples of other dismantling projects overseas. (author)

  16. Rye B chromosomes encode a functional Argonaute-like protein with in vitro slicer activities similar to its A chromosome paralog

    Czech Academy of Sciences Publication Activity Database

    Ma, W.; Gabriel, T.S.; Martis, M.M.; Gursinsky, T.; Schubert, V.; Vrána, Jan; Doležel, Jaroslav; Grundlach, H.; Altschmied, L.; Scholz, U.; Himmelbach, A.; Behrens, S.E.; Banaei-Moghaddam, A.M.; Houben, A.

    2017-01-01

    Roč. 213, č. 2 (2017), s. 916-928 ISSN 0028-646X R&D Projects: GA MŠk(CZ) LO1204; GA ČR GBP501/12/G090 Institutional support: RVO:61389030 Keywords : rna-polymerase-ii * ribosomal-rna * accessory chromosomes * plant argonautes * gene-expression * evolution * transcription * pseudogenes * sequences * identification * Argonaute * B chromosomes * B-located genes * gene erosion. gene expression * pseudogenization * Secale cereale Subject RIV: EB - Genetics ; Molecular Biology OBOR OECD: Plant sciences, botany Impact factor: 7.330, year: 2016

  17. Poesía de posguerra en Barcelona

    Directory of Open Access Journals (Sweden)

    Manjón-Cabeza Cruz, Dolores

    2008-06-01

    Full Text Available The history of Spanish poetry has refused up to now the poetry written in Barcelona between the final of the Civil War and 1951, the year of the foundation of the so-called «School of Barcelona». In this article there will be drawn some of the general lines of this nearly twelve years of Spanish writing, which where a period of linguistic substitution and cultural ideology, launching years of new editorials and collections, the creation of reviews y rewards, of tertulias and of plentiful poetic creations in Barcelona, the most part of them under the sign of surrealism. The main names of this history should be more or less known (J.R. Masoliver, Cirlot, Garcés, and so on, but their determination in connecting with the best poetry former of the Civil War and outside from Spain, should be worth mentioning for their singularity as well as for the quality of their products.La historia de la poesía de posguerra en España ha ignorado hasta ahora la poesía escrita en Barcelona entre el final de la Guerra Civil y 1951, el año fundacional de la llamada «Escuela de Barcelona». En este artículo se trazan las líneas maestras de esos casi doce años de escritura en castellano, que fueron tiempo de sustitución lingüística y cultural-ideológica, de lanzamiento de nuevas editoriales y colecciones, de creación de revistas y premios, de tertulias y de abundante creación poética en Barcelona, la mayor parte de ella bajo el signo del surrealismo. Los nombres propios de esta historia pueden ser más o menos conocidos (J.R. Masoliver, Cirlot, Garcés, etc. pero su empeño en conectar con lo mejor de las poéticas anteriores a la guerra y con las de fuera de nuestras fronteras es digno de reconocimiento y de atención, tanto por su singularidad como por la calidad de los frutos obtenidos.

  18. In silico molecular docking analysis of the human Argonaute 2 PAZ domain reveals insights into RNA interference

    Science.gov (United States)

    Kandeel, Mahmoud; Kitade, Yukio

    2013-07-01

    RNA interference (RNAi) is a critical cellular pathway activated by double stranded RNA and regulates the gene expression of target mRNA. During RNAi, the 3' end of siRNA binds with the PAZ domain, followed by release and rebinding in a cyclic manner, which deemed essential for proper gene silencing. Recently, we provided the forces underlying the recognition of small interfering RNA by PAZ in a computational study based on the structure of Drosophila Argonaute 2 (Ago2) PAZ domain. We have now reanalyzed these data within the view of the new available structures from human Argonauts. While the parameters of weak binding are correlated with higher (RNAi) in the Drosophila model, a different profile is predicted with the human Ago2 PAZ domain. On the basis of the human Ago2 PAZ models, the indicators of stronger binding as the total binding energy and the free energy were associated with better RNAi efficacy. This discrepancy might be attributable to differences in the binding site topology and the difference in the conformation of the bound nucleotides.

  19. Two way controls of apoptotic regulators consign DmArgonaute-1 a better clasp on it

    Science.gov (United States)

    Bag, Indira; SNCVL, Pushpavalli; Garikapati, Koteswara Rao; Bhadra, Utpal

    2018-01-01

    Argonaute family proteins are well conserved among all organisms. Its role in mitotic cell cycle progression and apoptotic cell elimination is poorly understood. Earlier we have established the contribution of Ago-1 in cell cycle control related to G2/M cyclin in Drosophila. Here we have extended our study in understanding the relationship of Ago-1 in regulating apoptosis during Drosophila development. Apoptosis play a critical role in controlling organ shape and size during development of multi cellular organism. Multifarious regulatory pathways control apoptosis during development among which highly conserved JNK (c-Jun N-terminal kinase) pathway play a crucial role. Here we have over expressed Ago-1 in Drosophila eye and brain by employing UAS (upstream activation sequence)-GAL4 system under the expression of eye and brain specific driver. Over expression of Ago-1 resulted in reduced number of ommatidia in the eye and produced smaller size brain in adult and larval Drosophila. A drastic reversal of the phenotype towards normal was observed upon introduction of a single copy of the dominant negative mutation of basket (bsk, Drosophila homolog of JNK) indicating an active and physical involvement of the bsk with Ago-1 in inducing developmental apoptotic process. Further study showed that Ago-1 stimulates phosphorylation of JNK through transforming growth factor-β activated kinase 1- hemipterous (Tak1-hep) axis of JNK pathway. JNK phosphorylation results in up regulation of pro-apoptotic genes head involution defective (hid), grim & reaper (rpr) and induces activation of Drosophila caspases (cysteinyl aspartate proteinases);DRONC (Death regulator Nedd2-like caspase), ICE (alternatively Drice, Death related ICE-like caspase) and DCP1 (Death caspase-1) by inhibiting apoptotic inhibitor protein DIAP1 (Death-associated inhibitor of apoptosis 1). Further, Ago-1 also inhibits miR-14 expression to trigger apoptosis. Our findings propose that Ago-1 acts as a key regulator

  20. Nuclear Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Hogerton, John

    1964-01-01

    This pamphlet describes how reactors work; discusses reactor design; describes research, teaching, and materials testing reactors; production reactors; reactors for electric power generation; reactors for supply heat; reactors for propulsion; reactors for space; reactor safety; and reactors of tomorrow. The appendix discusses characteristics of U.S. civilian power reactor concepts and lists some of the U.S. reactor power projects, with location, type, capacity, owner, and startup date.

  1. New mediterranean elements in contemporary housing. The case of Barcelona

    Directory of Open Access Journals (Sweden)

    Vincenzo Paolo Bagnato

    2012-10-01

    Full Text Available In the face of increasing and differentiating the low-cost housing demand and the trend of establishing new paradigms in the contemporary housing design, the architectural investigation has replaced into its disciplinary statement the topic of housing as central question in research and design experimentation. The city of Barcelona has codified in the last years innovative modalities of public management in social housing, offering interesting points of reflection on the idea of housing and of Mediterranean quality in urban, architectural and constructive terms. The paper proposes a key to the reading on the recent experiences of social housing in Barcelona illustrating the different forms through which architecture interprets the relationship between housing and public space, between innovation and constructive tradition.

  2. Latino gangs: An approach of social recuperation in Barcelona

    Directory of Open Access Journals (Sweden)

    Josep M. Lahosa i Cañellas

    2008-04-01

    Full Text Available This work presents an approach of what have become known as “Latino gangs”, and has been carried out in Barcelona since this reality first came to light, in late 2002. The approach is based onone of the criteria that Barcelona City Council has defined as a basic element of its urban policy, that is, to develop interventions that facilitate the integration of new emerging urban realities, even those that may result in the generation of conflict in the city’s social and political life. Meanwhile, one sine qua non condition is the acceptance of the rule of common law, and of the very diversityof the city’s community life. In the case under study, the aim has been to encourage groups of young Latinos who have been “branded” as dangerous to commence processes of normalisation, by exploring the associational route as a democratic resource for functioning socially.

  3. El monumento funerario ibérico de Malla (Barcelona

    Directory of Open Access Journals (Sweden)

    Albert LÓPEZ MULLOR

    2009-10-01

    Full Text Available En 1985, al explanarse un terreno cercano a la iglesia de Sant Vi cene de Malla (Barcelona, con motivo de la restauración del templo —que entonces concluía—, se produjo el hallazgo fortuito de dos bloques de piedra arenisca con decoración escultórica, mezclados con las tierras fruto de la construcción del nuevo cementerio municipal, realizada en 1982. Como quiera que el Servicio de Patrimonio Arquitectónico de la Diputación de Barcelona había realizado excavaciones en la iglesia un año antes, a consecuencia de las mencionadas obras de restauración, el Ayuntamiento de la villa comunicó el hallazgo realizado y, de este modo, pudimos estudiar rápidamente los materiales que presentamos y que, en su momento, ya fueron objeto de una primera aproximación.

  4. Imagined communities: Banal nationalism in Barcelona “Locutorios”

    Directory of Open Access Journals (Sweden)

    Joel Feliu

    2012-05-01

    Full Text Available Despite the huge competition that has emerged as a result of the on-going increase in the available ways one can connect to telephone and computer networks, Barcelona call shops, known as “locutorios,” are relatively successful small businesses. As a result of our research using a collective ethnographic fieldwork of “locutorios” in Barcelona, we articulated Michael Billig’s concept of banal nationalism and Benedict Anderson’s concept of imagined community to show that national imagined communities can be found in these public spaces of connection. The remarkable relevance of national identifications in these spaces, which paradoxically symbolize globalization as few other places do, is not only that they occur without apparent conflicts, but they also allow for coexistence and facilitate the emergence of new imagined communities.

  5. Empresas familiares de inmigrantes en Barcelona y Montevideo

    Directory of Open Access Journals (Sweden)

    Paola Martínez Pérez

    2009-12-01

    Full Text Available El objetivo de este trabajo es observar las diferentes dimensiones que adquiere la familia en las empresas familiares de inmigrantes. En este caso, la propuesta metodológica es analizar, de forma comparativa, la realidad empresarial consolidada del colectivo gallego en Montevideo con las empresas familiares de inmigrantes de reciente creación en el área metropolitana en Barcelona.

  6. An anthropological approach to voluntarily single motherhood in Barcelona

    Directory of Open Access Journals (Sweden)

    Oscar Jordana-Pröpper

    2013-06-01

    Full Text Available This article is based on the research I did for my doctoral thesis about voluntarily single motherhood in Barcelona (Catalonia, Spain. It is an anthropological approach to the appearance and the development of voluntarily single motherhood, which is when a woman becomes a mother through adoption or conception previously planned without partner. Within a framework of study carried out from October 2001 to October 2007 in the Barcelona Metropolitan Area, my research is based on in-depth interviews with twelve women from April 2002 to April 2006. The aim of the paper is to understand why women in Barcelona choose to be voluntarily single mothers. The purpose is to point out that the voluntarily single motherhood is a new way of understanding between women and men, resulting from the progressive changes in their respective gender roles. This anthropological research is grounded in a full vital process: from the personal decision of the women to become single mothers to the daily interaction with their children.

  7. Barcelona más allá de Barcelona. La ciudad cinematográfica transformada en otras ciudades

    Directory of Open Access Journals (Sweden)

    Carlota Bonet Balaguer

    2016-07-01

    Full Text Available Since the late twentieth century, the duality tourism and cinema, commonly referred to as film-induced tourism, has become one of the most emerging and dynamic tourist modalities. Amongst the various types of film-induced tourism accepted by the academia, this research has been based on one that has a double filmic identity: as film destination and as film setting. Meaning a film that is shot in a particular place but is actually representing elsewhere. The main objective of this research is to identify and analyse the international audio-visual productions or co-productions that have been partially or completely shot in Barcelona yet in fiction represent another city. The results were essentially obtained from an analytical-descriptive methodology. As a main conclusion of the study, it can be stated that international films which are shot in Barcelona but represent elsewhere in the film, have great potential to strengthen or create a competitive offer of film-induced tourism in Barcelona.

  8. A Single Argonaute Gene Participates in Exogenous and Endogenous RNAi and Controls Cellular Functions in the Basal Fungus Mucor circinelloides

    Science.gov (United States)

    Nicolás, Francisco E.; Moxon, Simon; de Haro, Juan P.; Dalmay, Tamas; Torres-Martínez, Santiago; Ruiz-Vázquez, Rosa M

    2013-01-01

    The mechanism of RNAi is well described in metazoans where it plays a role in diverse cellular functions. However, although different classes of endogenous small RNAs (esRNAs) have been identified in fungi, their biological roles are poorly described due, in part, to the lack of phenotype of mutants affected in the biogenesis of these esRNAs. Argonaute proteins are one of the key components of the RNAi pathways, in which different members of this protein family participate in the biogenesis of a wide repertoire of esRNAs molecules. Here we identified three argonaute genes of the fungus Mucor circinelloides and investigated their participation in exogenous and endogenous RNAi. We found that only one of the ago genes, ago-1, is involved in RNAi during vegetative growth and is required for both transgene-induced RNA silencing and the accumulation of distinct classes of esRNAs derived from exons (ex-siRNAs). Classes I and II ex-siRNAs bind to Ago-1 to control mRNA accumulation of the target protein coding genes. Class III ex-siRNAs do not specifically bind to Ago-1, but requires this protein for their production, revealing the complexity of the biogenesis pathways of ex-siRNAs. We also show that ago-1 is involved in the response to environmental signals, since vegetative development and autolysis induced by nutritional stress are affected in ago-1 − M. circinelloides mutants. Our results demonstrate that a single Ago protein participates in the production of different classes of esRNAs that are generated through different pathways. They also highlight the role of ex-siRNAs in the regulation of endogenous genes in fungi and expand the range of biological functions modulated by RNAi. PMID:23935973

  9. Safety evaluation report related to the renewal of the operating license for the research reactor at the University of Florida. Docket No. 50-83

    International Nuclear Information System (INIS)

    1982-05-01

    This Safety Evaluation Report for the application filed by the University of Florida (UF) for a renewal of Operating License R-56 to continue to operate its Argonaut-type research reactor has been prepared by the Office of Nuclear Reactor Regulation of the US Nuclear Regulatory Commission. The facility is owned and operated by the University of Florida and is located on the UF campus in Gainesville, Alachua County, Florida. The staff concludes that the reactor facility can continue to be operated by UF without endangering the health and safety of the public

  10. The Barcelona Mobile Cluster: Actors, Contents and Trends

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Scolari

    2009-07-01

    Full Text Available Communication mediated by mobile devices is one of the most dynamic sectors of the global economy and is transforming different aspects of our lives, including our ways of relating and our cultural production, distribution and consumption models. Media studies should not ignore these transformations. This paper presents the results of a study carried out during 2008 to determine the actors, contents produced and trends of the mobile communication companies in Barcelona. The study outlines an initial map of the situation, proposes a series of analysis categories and lays the foundations for more specific future studies on mCommunication.

  11. La Pintura informal en Barcelona, 1951-1970

    OpenAIRE

    Cirlot, Lourdes

    1980-01-01

    [spa] En la presente tesis doctoral se aborda el estudio de la pintura informal en la Escuela de Barcelona. Para ello la obra establece un “corpus” de 25 artistas plásticos importantes y se estudian sus aportaciones dentro del informalismo, que puede considerarse dividido en cuatro sub-tendencias: pintura de materia, pintura del signo-gesto, pintura tactista y pintura espacialista. El análisis de las aportaciones de los distintos pintores se ha efectuado directamente del natural, con el obje...

  12. Barcelona contemporánea: el ocaso de un modelo

    Directory of Open Access Journals (Sweden)

    Antonio Pizza

    2012-12-01

    Full Text Available Barcelona is a city, which through the democratization of public space in the second half of the seventies, developed with a noticeable intention of balancing the public and private. The municipalities’ efforts were focused towards the planification and regeneration of dilapidated spaces and the construction of new structures for public benefit. However, since 2007 new phenomena have come to light that emphasise urban problems in which public interests become less important than private investment initiatives. New market priorities, together with tourism and myriad immigration have caused an “expropriation” of the city from its inhabitants.

  13. Australia's replacement research reactor project

    International Nuclear Information System (INIS)

    Harris, K.J.

    1999-01-01

    HIFAR, a 10 MW tank type DIDO Class reactor has operated at the Lucas Heights Science and Technology Centre for 43 years. HIFAR and the 10 kW Argonaut reactor 'Moata' which is in the Care and Maintenance phase of decommissioning are Australia's only nuclear reactors. The initial purpose for HIFAR was for materials testing to support a nuclear power program. Changing community attitude through the 1970's and a Government decision not to proceed with a planned nuclear power reactor resulted in a reduction of materials testing activities and a greater emphasis being placed on neutron beam research and the production of radioisotopes, particularly for medical purposes. HIFAR is not fully capable of satisfying the expected increase in demand for medical radiopharmaceuticals beyond the next 5 years and the radial configuration of the beam tubes severely restricts the scope and efficiency of neutron beam research. In 1997 the Australian Government decided that a replacement research reactor should be built by the Australian Nuclear Science and Technology Organisation at Lucas Heights subject to favourable results of an Environmental Impact Study. The Ei identified no reasons on the grounds of safety, health, hazard or risk to prevent construction on the preferred site and it was decided in May 1999 that there were no environmental reasons why construction of the facility should not proceed. In recent years ANSTO has been reviewing the operation of HIFAR and observing international developments in reactor technology. Limitations in the flexibility and efficiency achievable in operation of a tank type reactor and the higher intrinsic safety sought in fundamental design resulted in an early decision that the replacement reactor must be a pool type having cleaner and higher intensity tangential neutron beams of wider energy range than those available from HIFAR. ANSTO has chosen to use it's own resources supported by specialised external knowledge and experience to identify

  14. The Sword in the Treasury of the Cathedral of Barcelona - Summary

    Directory of Open Access Journals (Sweden)

    Cirlot, Juan Eduardo

    1964-12-01

    Full Text Available IN the very treasury of the cathedral of Barcelona a famous, historical sword is to be seen among a number of precious objects of historical and artistical value. It once belonged to a most noble personality, the condestable Don Pedro of Portugal, for a few years count of Barcelona and king of Aragon.

    No disponible.

  15. Urban drainage in Barcelona: From hazard to resource?

    Directory of Open Access Journals (Sweden)

    David Saurí

    2017-06-01

    Full Text Available Our objective in this paper is to trace the historical trajectory of urban drainage in Barcelona from the 19th century to the present highlighting the main changes in approach, from the 'everything down the drain' philosophy of the 19th century to the sustainable urban drainage systems of the early 21st century. In this trajectory we identify four main historical periods. The first period corresponds to the 'Garcia Faria Plan' of the late 19th century which initiated the construction of modern drainage in Barcelona. The second period, lasting for much of the 20th century, showed the expansion of the centralised sewer system that, however, could not solve the chronic problems of flooding and pollution created by fast urbanisation. The third period, governed by the Olympic Games of 1992 and the rehabilitation of the beach front, entailed a massive reconfiguration of the sewer system now connected to wastewater treatment plants and enhanced with a number of large underground stormwater reservoirs. Finally, since the early 2000s, urban drainage is increasingly adopting decentralised, smallscale solutions to drainage such as Sustainable Urban Drainage Systems (SUDS. While signs of the transition towards a more sustainable approach to urban drainage are already present, the conventional approach remains strong and appears to be evolving also towards more sustainable solutions. Hence, system coexistence rather than substitution appears to be the outcome of the transition in urban drainage in this city.

  16. Edificio en La Plaza Lesseps de Fernando Lesseps – Barcelona

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    Danés, Albert

    1975-02-01

    Full Text Available This interesting example of urban architecture is situated in Barcelona, facing two streets of different widths, for which reasons the number of floors on the two sides is also different. The basements are reserved for parking space. Further the building comprises commercial ground floors with very attractive shopping arcades; a mezzanine commercial floor as well and the top floors, that are intended for housings. Pleasant exterior with solid colours. The work has been achieved thanks to the valuable contribution of Lluciá Navarro i Rodón.Esta interesante muestra de la arquitectura urbana está emplazada en Barcelona, con fachadas a dos calles de anchura diferente, por lo que el número de plantas es también distinto. Sótanos destinados a estacionamiento de vehículos. Plantas bajas comerciales, con galerías de paso muy atractivas. Entresuelo, también comercial, y plantas altas de viviendas variadas. Tratamiento exterior atrayente, a base de colores sólidos y sistema esgrafiado, contando con la valiosa colaboración de Lluciá Navarro i Rodón.

  17. HAS IMPLEMENTING AN ECOLABEL INCREASED SUSTAINABLE TOURISM IN BARCELONA?

    Directory of Open Access Journals (Sweden)

    Rocío Arenado Rodríguez

    2017-01-01

    Full Text Available El objetivo principal de este estudio es detectar si la implementación de una eco etiqueta en destinos turísticos con un modelo SDM, incrementa su sostenibilidad. Para dicha investigación, se han puesto en práctica tres medidas en Barcelona: (1 entrevistas con agentes locales clave (DMOs, para comprobar su aceptación e implicación en el proyecto de certificación; (2 la puesta en práctica de dos acciones relevantes para el estudio: (a contrastar los criterios de la eco etiqueta objeto de estudio con los criterios del GSTC (2016, (b comprobar si la eco etiqueta se adecua al estudio de Font (2001 sobre las mismas. Por último, como tercera medida (3, se plantea una discusión para conocer si los medios de comunicación y la población local perciben la ciudad como turísticamente sostenible. Los resultados establecen que tanto Barcelona Tourism Board como los agentes claves muestran preocupación, interés y compromiso frente a la sostenibilidad turística. Y respecto a la ecoetiqueta, puede comprobarse que es fiable, pues se adapta a las exigencias tanto del modelo de Font (2001 como a los criterios del GSTC. Sin embargo, la población local muestra una clara insatisfacción y malestar con el volumen de turistas que visita a la ciudad. Esta parece no entender de etiquetas, pero sí de impactos negativos del turismo en sus vidas. La principal limitación del estudio es que solo ha sido analizado el caso de Barcelona. Mientras que su contribución más interesante es la puesta en práctica de conceptos ampliamente aceptados, pero que por lo general se estudian más de forma teórica que sobre los destinos turísticos.

  18. An approach of groundwater management in Barcelona City

    Science.gov (United States)

    Criollo, Rotman; Vázquez-Suñé, Enric; Velasco, Violeta; Marazuela, Miguel Angel; Burdons, Silvia; Enrich, Monica; Cardona, Fidel

    2017-04-01

    Urban groundwater is a valuable resource since its quantity is larger than frequently expected due to additional recharge sources (Lerner, 2002; Vázquez-Suñé et al., 2003). Its interaction with the complex infrastructures network makes the water authorities a challenge to ensure a proper water management. Necessary datasets to ensure a suitable water management have normally different origins and formats. At the same time, the water management of a city involves different decision makers with different knowledges. In this scenario, it is a necessity to create a common environment where different actors would be able to understand and analyze problems in the same way. It should be also necessary to store, analyze and visualize all the required data in the same formats within its geographical context by using standardized specific tools. To apply these recommendations for the urban groundwater management of the Barcelona City Council, we have implemented a software platform developed in a Geographic Information System (GIS) environment. These GIS-based tools will give support to the users for storing, managing, and analyzing geological, hydrogeological and hydrochemical data in 2D and in a 3D context (Velasco et al., 2013). This implementation will improve the groundwater management in Barcelona city optimizing the analysis and decision making processes. References Lerner, D.N., (2002). Identifying and quantifying urban recharge: a review. Hydrogeology Journal, 10 (1), pp. 143-152 Vázquez-Suñé, E., Sánchez-Vila, X. & Carrera, J. (2005). Introductory review of specific factors influencing urban groundwater, an emerging branch of hydrogeology, with reference to Barcelona, Spain. Hydrogeology Journal, 13: 522. doi:10.1007/s10040-004-0360-2 Velasco, V., Gogu, R., Vázquez-Suñè, E., Garriga A., Ramos, E., Riera, J., Alcaraz, M. (2013). The use of GIS-based 3D geological tools to improve hydrogeological models of sedimentary media in an urban environment

  19. Academic cheating and gender differences in Barcelona (Spain

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    Ramón Cladellas

    2013-07-01

    Full Text Available The aim of this paper is to present the issue of academic cheating, describe its causes, and examine the obstacles this behaviour creates for learning. The research was carried out with 306 students from Barcelona (Spain which were administered both with a psycho educational interview and a questionnaire. Results are similar to those from other countries and show that more than half of the students are in the habit of frequently cheating, and that boys cheat significantly more often than girls. To finish, the text suggests teaching strategies to control academic cheating in educational institutions, such as: Being aware of the problem and taking the decision to tackle it, including ethics tuition in the curricular content, teaching summarising and rephrasing techniques, frequently revising students’ writings, and last but not least, being very strict with deadlines and not accepting unwarranted excuses repeatedly made by students for not observing them.

  20. The Militant Prison. Ventas (Madrid and Les Corts (Barcelona

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    Fernando HERNÁNDEZ HOLGADO

    2012-02-01

    Full Text Available This work attempts to assess the history of two of the most important prisons of the Franco’s dictactorship, Ventas and Les Corts, corresponding to the most populated Spanish cities, Madrid and Barcelona. We start from the background of the female imprisonment in Spain, branded by an special stamp with the keynote of influence of religious agents, at least until the Republican reforms of 1931. At the same time, we stress the impact of the «civilizatory breach» as a result of the civil war and immediate postwar, in terms of massive imprisonment and spreading of death sentences even among women. Finally, this essay deals with the making up of an specific prisoner culture, closely politicized and distinguished from the male one, the memory of which would be transmitted over the following decades by means of the stories of the political female prisoners.

  1. Sprawl in Barcelona Region and the PTMB 2010

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    Antonio Acierno

    2012-04-01

    Full Text Available The Barcelona metropolitan region is composed of 164 municipalities distributed over an area of ​​about 3234 sq km with a population of 5 million inhabitants. In the last decades, the growth of metropolitan region has been characterized by some critical problems: high land occupation, dispersed occupation of the territory, low building density, considerable fragmentation and high specialization (residential developments, commercial centers, industrial areas, etc, growing social segregation. The sprawl, together with changes in economic and social structure, caused a loss of landscape and environment values in the territory, a reduction of natural areas, involving an increase in consumption of resources. The sprawling development was already evident in the early 1970s, and a study of dynamic of the sprawl was conducted to show the main features of this process. The morphology of discontinuity, fragmentation and heterogeneity are common features of the metropolitan regions in Southern Europe. The changes from the traditional compact city to a dispersed one caused important effects in the functioning of the territories and in the lifestyles of their users. The main problems addressed by the plan have been identified in the sprawl, the territorial fragmentation and the growing social segregation. The adoption of the Barcelona Metropolitan Plan is a notable innovation in the scenario of spatial planning and urban policies in Catalonia. In fact, the PTMB, that comes to close more than 40 years of controversy and failed attempts, presents some aspects of particular interest and represents a planning tool providing a methodology for administrative and political management for the future. The plan has been proposed by regional government in concert with municipalities through an interesting participatory process that has secured a broad consensus. The plan structure founded on three main systems: Open Spaces, Settlements and Infrastructures; all of

  2. Argonaute Utilization for miRNA Silencing Is Determined by Phosphorylation-Dependent Recruitment of LIM-Domain-Containing Proteins

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    Katherine S. Bridge

    2017-07-01

    Full Text Available As core components of the microRNA-induced silencing complex (miRISC, Argonaute (AGO proteins interact with TNRC6 proteins, recruiting other effectors of translational repression/mRNA destabilization. Here, we show that LIMD1 coordinates the assembly of an AGO-TNRC6 containing miRISC complex by binding both proteins simultaneously at distinct interfaces. Phosphorylation of AGO2 at Ser 387 by Akt3 induces LIMD1 binding, which in turn enables AGO2 to interact with TNRC6A and downstream effector DDX6. Conservation of this serine in AGO1 and 4 indicates this mechanism may be a fundamental requirement for AGO function and miRISC assembly. Upon CRISPR-Cas9-mediated knockout of LIMD1, AGO2 miRNA-silencing function is lost and miRNA silencing becomes dependent on a complex formed by AGO3 and the LIMD1 family member WTIP. The switch to AGO3 utilization occurs due to the presence of a glutamic acid residue (E390 on the interaction interface, which allows AGO3 to bind to LIMD1, AJUBA, and WTIP irrespective of Akt signaling.

  3. The Argonaute CSR-1 and its 22G-RNA cofactors are required for holocentric chromosome segregation.

    Science.gov (United States)

    Claycomb, Julie M; Batista, Pedro J; Pang, Ka Ming; Gu, Weifeng; Vasale, Jessica J; van Wolfswinkel, Josien C; Chaves, Daniel A; Shirayama, Masaki; Mitani, Shohei; Ketting, René F; Conte, Darryl; Mello, Craig C

    2009-10-02

    RNAi-related pathways regulate diverse processes, from developmental timing to transposon silencing. Here, we show that in C. elegans the Argonaute CSR-1, the RNA-dependent RNA polymerase EGO-1, the Dicer-related helicase DRH-3, and the Tudor-domain protein EKL-1 localize to chromosomes and are required for proper chromosome segregation. In the absence of these factors chromosomes fail to align at the metaphase plate and kinetochores do not orient to opposing spindle poles. Surprisingly, the CSR-1-interacting small RNAs (22G-RNAs) are antisense to thousands of germline-expressed protein-coding genes. Nematodes assemble holocentric chromosomes in which continuous kinetochores must span the expressed domains of the genome. We show that CSR-1 interacts with chromatin at target loci but does not downregulate target mRNA or protein levels. Instead, our findings support a model in which CSR-1 complexes target protein-coding domains to promote their proper organization within the holocentric chromosomes of C. elegans.

  4. Exploring the RNA-bound and RNA-free human Argonaute-2 by molecular dynamics simulation method.

    Science.gov (United States)

    Kong, Ren; Xu, Lei; Piao, Lianhua; Zhang, Dawei; Hou, Ting-Jun; Chang, Shan

    2017-11-01

    Argonaute 2 (Ago2) protein is the major vehicle of microRNAs (miRNAs)-guided gene repression and silencing processes. Although the crystal structure of human Ago2 (hAgo2) has recently been disclosed, the information of dynamically structural character of protein-RNA recognition is still lacking. Molecular dynamics simulations were used to systematically explore hAgo2 in the presence and absence of RNA duplex. Stable direct and water-mediated hydrogen bonds were observed between guide RNA backbone atoms and hAgo2, especially for nucleotides 2-7. In addition, water-mediated hydrogen bonds are indicated to be critical in the specific recognition between hAgo2 and the conserved adenine in position 1 of target RNA. The core domains (N, PAZ, MID, and PIWI) possess rigid body movements during the simulations. The motions of N-PAZ and PIWI-MID are negatively correlated with or without RNA binding and PAZ domain is identified as the most mobile domain in both systems. The reorientation of PAZ domain not only influences the binding of helix-7 and RNA duplex, the initial pairing process, but also the shape of N-PAZ cleft, where the supplemental base pairing occurs. It is speculated that PAZ domain could be a key regulator in hAgo2-mediated miRNA-induced gene regulation. © 2017 John Wiley & Sons A/S.

  5. DNA double-strand braks serve as a major factor for the expression of Arabidopsis Argonaute 2

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sung Beom; Chung, Moon Soo; Lee, Gun Woong; Chung, Byung Yeoup [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup (Korea, Republic of)

    2017-02-15

    Argonaute 2 (AtAGO2) is a well characterized effector protein in Arabidopsis for its functionalities associated with DNA double-strand break (DSB)-induced small RNAs (diRNAs) and for its inducible expression upon γ-irradiation. However, its transcriptional regulation depending on the recovery time after the irradiation and on the specific response to DSBs has been poorly understood. We analyzed the 1,313 bp promoter sequence of the AtAGO2 gene (1.3kb{sub pro}) to characterize the transcriptional regulation of AtAGO2 at various recovery times after γ-irradiation. A stable transformant harboring 1.3kbpro fused with GUS gene showed that the AtAGO2 is highly expressed in response to γ-irradiation, after which the expression of the gene is gradually decreased until 5 days of DNA damage recovery. We also confrm that the AtAGO2 expression patterns are similar to that of γ-irradiation after the treatments of radiomimetic genotoxins (bleomycin and zeocin). However, methyl methanesulfonate and mitomycin C, which are associated with the inhibition of DNA replication, do not induce the expression of the AtAGO2, suggesting that the expression of the AtAGO2 is closely related with DNA DSBs rather than DNA replication.

  6. An effector of RNA-directed DNA methylation in Arabidopsis is an ARGONAUTE 4- and RNA-binding protein

    Science.gov (United States)

    He, Xin-Jian; Hsu, Yi-Feng; Zhu, Shihua; Wierzbicki, Andrzej T.; Pontes, Olga; Pikaard, Craig S.; Liu, Hai-Liang; Wang, Co-Shine; Jin, Hailing; Zhu, Jian-Kang

    2009-01-01

    Summary DNA methylation is a conserved epigenetic mark in plants and mammals. In Arabidopsis, DNA methylation can be triggered by small interfering RNAs (siRNAs) through an RNA-directed DNA methylation (RdDM) pathway. Here we report the identification of a new RdDM effector, RDM3/KTF1. Loss-of-function mutations in RDM3/KTF1 reduce DNA methylation and release the silencing of RdDM target loci without abolishing the siRNA triggers. KTF1 has similarity to the transcription elongation factor SPT5 and contains a C-terminal extension rich in GW/WG repeats. KTF1 colocalizes with ARGONAUTE 4 (AGO4) in punctate nuclear foci, and binds AGO4 and RNA transcripts. Our results suggest KTF1 as an adaptor protein that binds scaffold transcripts generated by Pol V and recruits AGO4 and AGO4-bound siRNAs to form an RdDM effector complex. The dual interaction of an effector protein with AGO and small RNA target transcripts may be a general feature of RNA silencing effector complexes. PMID:19410546

  7. A Nuclear Role for miR-9 and Argonaute Proteins in Balancing Quiescent and Activated Neural Stem Cell States

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    Shauna Katz

    2016-10-01

    Full Text Available Throughout life, adult neural stem cells (NSCs produce new neurons and glia that contribute to crucial brain functions. Quiescence is an essential protective feature of adult NSCs; however, the establishment and maintenance of this state remain poorly understood. We demonstrate that in the adult zebrafish pallium, the brain-enriched miR-9 is expressed exclusively in a subset of quiescent NSCs, highlighting a heterogeneity within these cells, and is necessary to maintain NSC quiescence. Strikingly, miR-9, along with Argonaute proteins (Agos, is localized to the nucleus of quiescent NSCs, and manipulating their nuclear/cytoplasmic ratio impacts quiescence. Mechanistically, miR-9 permits efficient Notch signaling to promote quiescence, and we identify the RISC protein TNRC6 as a mediator of miR-9/Agos nuclear localization in vivo. We propose a conserved non-canonical role for nuclear miR-9/Agos in controlling the balance between NSC quiescence and activation, a key step in maintaining adult germinal pools.

  8. The Coding Regions of Germline mRNAs Confer Sensitivity to Argonaute Regulation in C. elegans

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    Meetu Seth

    2018-02-01

    Full Text Available Protein-coding genes undergo a wide array of regulatory interactions with factors that engage non-coding regions. Open reading frames (ORFs, in contrast, are thought to be constrained by coding function, precluding a major role in gene regulation. Here, we explore Piwi-interacting (piRNA-mediated transgene silencing in C. elegans and show that marked differences in the sensitivity to piRNA silencing map to the endogenous sequences within transgene ORFs. Artificially increasing piRNA targeting within the ORF of a resistant transgene can lead to a partial yet stable reduction in expression, revealing that piRNAs not only silence but can also “tune” gene expression. Our findings support a model that involves a temporal element to mRNA regulation by germline Argonautes, likely prior to translation, and suggest that piRNAs afford incremental control of germline mRNA expression by targeting the body of the mRNA, including the coding region.

  9. Study of miRNA Based Gene Regulation, Involved in Solid Cancer, by the Assistance of Argonaute Protein

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    Surya Narayan Rath

    2016-09-01

    Full Text Available Solid tumor is generally observed in tissues of epithelial or endothelial cells of lung, breast, prostate, pancreases, colorectal, stomach, and bladder, where several genes transcription is regulated by the microRNAs (miRNAs. Argonaute (AGO protein is a family of protein which assists in miRNAs to bind with mRNAs of the target genes. Hence, study of the binding mechanism between AGO protein and miRNAs, and also with miRNAs-mRNAs duplex is crucial for understanding the RNA silencing mechanism. In the current work, 64 genes and 23 miRNAs have been selected from literatures, whose deregulation is well established in seven types of solid cancer like lung, breast, prostate, pancreases, colorectal, stomach, and bladder cancer. In silico study reveals, miRNAs namely, miR-106a, miR-21, and miR-29b-2 have a strong binding affinity towards PTEN, TGFBR2, and VEGFA genes, respectively, suggested as important factors in RNA silencing mechanism. Furthermore, interaction between AGO protein (PDB ID-3F73, chain A with selected miRNAs and with miRNAs-mRNAs duplex were studied computationally to understand their binding at molecular level. The residual interaction and hydrogen bonding are inspected in Discovery Studio 3.5 suites. The current investigation throws light on understanding miRNAs based gene silencing mechanism in solid cancer.

  10. Expression of the Argonaute protein PiwiL2 and piRNAs in adult mouse mesenchymal stem cells

    International Nuclear Information System (INIS)

    Wu, Qiuling; Ma, Qi; Shehadeh, Lina A.; Wilson, Amber; Xia, Linghui; Yu, Hong; Webster, Keith A.

    2010-01-01

    Piwi (P-element-induced wimpy testis) first discovered in Drosophila is a member of the Argonaute family of micro-RNA binding proteins with essential roles in germ-cell development. The murine homologue of PiwiL2, also known as Mili is selectively expressed in the testes, and mice bearing targeted mutations of the PiwiL2 gene are male-sterile. PiwiL2 proteins are thought to protect the germ line genome by suppressing retrotransposons, stabilizing heterochromatin structure, and regulating target genes during meiosis and mitosis. Here, we report that PiwiL2 and associated piRNAs (piRs) may play similar roles in adult mouse mesenchymal stem cells. We found that PiwiL2 is expressed in the cytoplasm of metaphase mesenchymal stem cells from the bone marrow of adult and aged mice. Knockdown of PiwiL2 with a specific siRNA enhanced cell proliferation, significantly increased the number of cells in G1/S and G2/M cell cycle phases and was associated with increased expression of cell cycle genes CCND1, CDK8, microtubule regulation genes, and decreased expression of tumor suppressors Cables 1, LATS, and Cxxc4. The results suggest broader roles for Piwi in genome surveillance beyond the germ line and a possible role in regulating the cell cycle of mesenchymal stem cells.

  11. ARGONAUTE 6 bridges transposable element mRNA-derived siRNAs to the establishment of DNA methylation

    Science.gov (United States)

    McCue, Andrea D; Panda, Kaushik; Nuthikattu, Saivageethi; Choudury, Sarah G; Thomas, Erica N; Slotkin, R Keith

    2015-01-01

    Transposable elements (TEs) generate mutations and chromosomal instability when active. To repress TE activity, eukaryotic cells evolved mechanisms to both degrade TE mRNAs into small interfering RNAs (siRNAs) and modify TE chromatin to epigenetically inhibit transcription. Since the populations of small RNAs that participate in TE post-transcriptional regulation differ from those that establish RNA-directed DNA methylation (RdDM), the mechanism through which transcriptionally active TEs transition from post-transcriptional RNAi regulation to chromatin level control has remained unclear. We have identified the molecular mechanism of a plant pathway that functions to direct DNA methylation to transcriptionally active TEs. We demonstrated that 21–22 nucleotide (nt) siRNA degradation products from the RNAi of TE mRNAs are directly incorporated into the ARGONAUTE 6 (AGO6) protein and direct AGO6 to TE chromatin to guide its function in RdDM. We find that this pathway functions in reproductive precursor cells to primarily target long centromeric high-copy transcriptionally active TEs for RdDM prior to gametogenesis. This study provides a direct mechanism that bridges the gap between the post-transcriptional regulation of TEs and the establishment of TE epigenetic silencing. PMID:25388951

  12. Measuring thermal neutron spectra of RIEN-1 reactor with a chopper

    International Nuclear Information System (INIS)

    Jesus Vilar, G. de.

    1977-03-01

    The setting up of a time-of-flight spectrometer (Fermi Chopper) and its use in measurements of thermal neutron spectra in the irradiation channels of the Argonaut Reactor(Instituto de Engenharia Nuclear, Brazil), is described. These distributions are obtained using a multichannel analyser with the necessary corrections being made for counting losses in the analyser, dectector efficiency experimental resolution and chopper transmission function. The results obtained show that the thermal neutron flux emerging from the canal J-9 can be approximately described by a Maxwellian distribution with and associated characteristic temperature fo 430+-30 0 K [pt

  13. Nuclear reactors

    International Nuclear Information System (INIS)

    Barre, Bertrand

    2015-10-01

    After some remarks on the nuclear fuel, on the chain reaction control, on fuel loading and unloading, this article proposes descriptions of the design, principles and operations of different types of nuclear reactors as well as comments on their presence and use in different countries: pressurized water reactors (design of the primary and secondary circuits, volume and chemistry control, backup injection circuits), boiling water reactors, heavy water reactors, graphite and boiling water reactors, graphite-gas reactors, fast breeder reactors, and fourth generation reactors (definition, fast breeding). For these last ones, six concepts are presented: sodium-cooled fast reactor, lead-cooled fast reactor, gas-cooled fast reactor, high temperature gas-cooled reactor, supercritical water-cooled reactor, and molten salt reactor

  14. Use of research reactors for training and teaching nuclear sciences

    International Nuclear Information System (INIS)

    Safieh, J.; Gless, B.

    2002-01-01

    Training activities on reactors are organized by Cea on 2 specially dedicated reactors Ulysse (Saclay) and Siloette (Grenoble) and 2 research reactors Minerve (Cadarache) and Azur (Cadarache, facility managed by Technicatome). About 4000 students have been trained on Ulysse since its commissioning more than 40 years ago. The concept that led to the design of Ulysse was to build a true reactor dedicated to teaching and training activities and that was able to operate with great flexibility and under high conditions of safety, this reactor is inspired from the Argonaut-type reactor. The main specificities of Ulysse are: a nominal power of 100 kW, a maximal thermal neutron flux of 1.4 10 12 n.cm -2 .s -1 , a 90 % enriched fuel, a graphite reflector, the use of water as coolant and moderator, and 6 cadmium plates as control rods. Ulysse allows students to get practical experience on a large range of topics: approach to criticality, effect of the starting neutron source, calibration of control rods, distribution of the neutron flux in the thermal column, temperature coefficient, radiation detectors, neutron activation analysis, and radioprotection. (A.C.)

  15. NEWS FROM THE ANNUAL CONGRESS OF EUROPEAN SOCIETY OF CARDIOLOGY (BARCELONA 2014: REALIZED AND UNREALIZED EXPECTATIONS

    Directory of Open Access Journals (Sweden)

    S. Y. Martsevich

    2015-09-01

    Full Text Available News from Congress of the European Society of Cardiology (Barcelona, 2014 is highlighted. Results of recent controlled clinical trials, new clinical recommendations and registers data that were presented at the Congress are discussed.

  16. NEWS FROM THE ANNUAL CONGRESS OF EUROPEAN SOCIETY OF CARDIOLOGY (BARCELONA 2014: REALIZED AND UNREALIZED EXPECTATIONS

    Directory of Open Access Journals (Sweden)

    S. Y. Martsevich

    2014-01-01

    Full Text Available News from Congress of the European Society of Cardiology (Barcelona, 2014 is highlighted. Results of recent controlled clinical trials, new clinical recommendations and registers data that were presented at the Congress are discussed.

  17. Land snails and slugs at the Natural Park of the Serralada Litoral (Barcelona, Spain

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    Bros, V.

    2014-02-01

    Full Text Available The population of molluscs at the Natural Park of the Serralada Litoral (Barcelona, Spain, NE Iberian Peninsula was assessed, contributing to the conservation plan. A wildlife inventory was conducted based on fieldwork.

  18. HISTORIC CENTRE(S OF BARCELONA: PRACTICAL AND SYMBOLIC ELEMENTS IN TRADITIONAL URBAN SPACE

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    Verónica Martínez Robles

    2007-09-01

    The model of compact city that Barcelona aims, has required the renewal of its historical areas, and in order to improve their level of centrality, taking into account, that in addition of its historical centre “Ciutat Vella”, Barcelona contains diverse traditional neighborhoods each of them having their own historical centre. The difference centre‐periphery should also be perceived among these other historical centers. Integration should not be confused with standardization, neither differentiation with segregation.

  19. The Bernades herbarium in the Botanic Institute of Barcelona (BC

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    Ibáñez, N.

    2009-12-01

    Full Text Available The BC-Bernades herbarium is one of the oldest collections conserved in the Botanical Institute of Barcelona. It contains part of the field collections of Miquel Bernades i Mainader and Miquel Bernades i Clarís, doctors of medicine and botanists of Catalonian origin living in Madrid in the 18th century. The collection consists of 817 sheets, the complete list provided in the annexe. We also present information concerning the localities of certain specific recollections, the taxonomic groups and families, as well as a list of sheets of special interest. This list contains witness of cornfield weed now very rare or extinct in Iberian lands, such as Hymenocarpos circinatus (L. Savi or Securigera securidaca (L. Degen & Dörfl , and also some of the first witness known from Spain of introduced plants, such as Aster cordifolius L. or Bidens bipinnata L.

    [es] El herbario BC-Bernades es una de las colecciones más antiguas conservadas en el Instituto Botánico de Barcelona. Contiene parte de las recolecciones de Miquel Bernades y Mainader y Miquel Bernades y Clarís, médicos y botánicos catalanes del siglo XVIII establecidos en Madrid. Consta de 817 pliegos, la relación de los cuales presentamos en un anexo. También mostramos datos sobre las localidades de recolección, grupos taxonómicos y familias presentes, y una relación de pliegos de interés. Entre estos aparecen testimonios de plantas arvenses extinguidas o muy raras en tierras ibéricas como Hymenocarpos circinatus (L. Savi o Securigera securidaca (L. Degen & Dörfl , y también algunos de los primeros testimonios conocidos en España de plantas introducidas como Aster cordifolius L. o Bidens bipinnata L. [ct] L’herbari BC-Bernades és una de les col·leccions més antigues de les conservades a l’Institut Botànic de Barcelona. Conté part de les recol·leccions de Miquel Bernades i Mainader i Miquel Bernades

  20. Trabajo sexual en Barcelona. Sobre la gestión municipal del espacio público

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    Julieta Vartabedian

    2011-02-01

    Full Text Available In this paper, the author will reflect on the management of public spaces in Barcelona through the case of sex work. The different ways that the Barcelona City Council has promoted the control and restriction of the free exercise of street sex work will be discussed. Recognising that the spaces are not fully accessible to everyone, the model of "civility" that Barcelona plans to implement will be explained. As a result of former zoning practices, there is a political will to make this activity "invisible", which perpetuates the vulnerability of sex workers themselves. En este artículo la autora reflexionará sobre la gestión del espacio público en Barcelona a través del caso del trabajo sexual. Se analizarán las distintas modalidades que el Ayuntamiento de Barcelona ha promovido para, en definitiva, controlar y restringir el libre ejercicio del trabajo sexual callejero. Partiendo del reconocimiento que los espacios no son plenamente accesibles para todas y todos, se explicará el modelo de “civismo” que Barcelona pretende implementar. Mediante antiguas prácticas de zonificación, se observa una voluntad política de invisibilizar esta actividad al mismo tiempo que se perpetúa la vulnerabilidad de las propias trabajadoras.Download this paper from SSRN: http://ssrn.com/abstract=1953623

  1. Bon Pastor (Barcelona un territori en construcció

    Directory of Open Access Journals (Sweden)

    Xavier Salas Ramos

    2016-04-01

    Full Text Available L'article desenvolupa alguns dels aspectes de la tesi doctoral de l'autor (Sales, 2015. Es planteja una anàlisi de l'evolució del territori en el qual es troba el barri del Bon Pastor (Barcelona, posant l'accent en l'entorn construït. Per a això, la narrativa històrica es complementa amb documentació gràfica, part d'ella a partir dels diversos tallers de participació que l'autor ha desenvolupat i continua desenvolupant-se en aquest barri, en cooperació amb l'Associació de Veïns i l'Ajuntament de Barcelona (Districte de Sant Andreu amb l'objectiu de desenvolupar intervencions en l'espai públic de la zona en relació amb la preservació de la memòria cívica de Bon Pastor i en el context d'avançar en els processos de governaza urbana basada en la participació creativa dels veïns  Alhora s'organitzaven els primers processos participatius, vam començar a documentar la història de Bon Pastor. També a fer rutes pel barri per veure les seves característiques urbanes actuals i recopilar informació sobre els plans urbanístics vigents. Els següents paràgrafs són una síntesi del relat literari de la història de Bon Pastor i les seves principals característiques urbanes. Com va succeir amb Baró de Viver, és un relat que s'haurà d'anar completant a mesura que es desenvolupin els diferents processos participatius amb els relats de les vivències de la població, així com la diferent documentació que ens puguin aportar

  2. H Reactor

    Data.gov (United States)

    Federal Laboratory Consortium — The H Reactor was the first reactor to be built at Hanford after World War II.It became operational in October of 1949, and represented the fourth nuclear reactor on...

  3. Ciudadanos del este de Europa consumidores de drogas en Barcelona Injecting drug users from Eastern Europe in Barcelona, Spain

    Directory of Open Access Journals (Sweden)

    M. González

    2003-06-01

    Full Text Available Desde mayo de 1999 hasta mayo de 2001, hemos contactado en el SAPS (Servicio de Atención Social y Sanitaria de Barcelona con usuarios de drogas de países del este de Europa. Acuden a centros terapéuticos gratuitos, aunque pagan por la organización del viaje unos 500 euros. Son jóvenes entre 18 y 30 años y mantienen el contacto con sus familiares. Conocen los riesgos de transmisión de enfermedades, pero suelen reutilizar las jeringas. Es alta la prevalencia de hepatitis C (92% y B (62% y menor la de infección por el VIH (19%. Si no abandonan las drogas, el retorno es un fracaso y tienen dificultades para proseguir los tratamientos con metadona o antirretrovirales. La respuesta asistencial ha de adecuarse a sus necesidades. Se debe procurar la mediación cultural y la información en los lugares de origen, supervisar los centros terapéuticos y diseñar alternativas a los abandonos. Hay que desarrollar la colaboración internacional, estimular programas de disminución de riesgos derivados del consumo y evitar que del tratamiento se haga un comercio.From May 1999 to May 2001, we made contact with injecting drug users from Eastern Europe in the healthcare and prevention service of the Red Cross (servicio de atención y prevención sociosanitaria [SAPS] in Barcelona (Spain. The users attended free therapeutic centers, but paid approximately 500 € for the trip. The users were aged between 18 and 30 years old and maintained family contact. The knew the risk of disease transmission, but often exchanged needles. The prevalence of hepatitis C (92% and B (62% was high but less than that of HIV (19%. If they did not stop taking drugs their return would be a failure and they would have difficulties in following methadone and antiretroviral treatments in their countries of origin. The healthcare provided in these centers should respond to user' needs: cultural mediation should be sought, as well as information from users' countries of origin

  4. Safety-evaluation report related to the renewal of the operating license for the research reactor at the Iowa State University (Docket No. 50-116)

    International Nuclear Information System (INIS)

    1983-09-01

    This Safety Evaluation Report for the application filed by the Iowa State University (ISU) for a renewal of the Class 104 Operating License R-59 to continue to operate its Argonaut-type research reactor has been prepared by the Office of Nuclear Reactor Regulation of the US Nuclear Regulatory Commission. The facility is owned and operated by the Iowa State University, and is located on the ISU campus in Ames, Story County, Iowa. The staff concludes that the reactor facility can continue to be operated by ISU without endangering the health and safety of the public. The principal matters reviewed are: design, testing, and performance of the reactor components and systems; the expected consequences of credible accidents; the licensee's management organization; the method used for the control of radiological effluents; the licensee's technical specifications; financial data and information; the physical protection program; procedures for training reactor operators; and emergency plans. 11 references, 15 figures, 13 tables

  5. Natural variation of the amino-terminal glutamine-rich domain in Drosophila argonaute2 is not associated with developmental defects.

    Directory of Open Access Journals (Sweden)

    Daniel Hain

    2010-12-01

    Full Text Available The Drosophila argonaute2 (ago2 gene plays a major role in siRNA mediated RNA silencing pathways. Unlike mammalian Argonaute proteins, the Drosophila protein has an unusual amino-terminal domain made up largely of multiple copies of glutamine-rich repeats (GRRs. We report here that the ago2 locus produces an alternative transcript that encodes a putative short isoform without this amino-terminal domain. Several ago2 mutations previously reported to be null alleles only abolish expression of the long, GRR-containing isoform. Analysis of drop out (dop mutations had previously suggested that variations in GRR copy number result in defects in RNAi and embryonic development. However, we find that dop mutations genetically complement transcript-null alleles of ago2 and that ago2 alleles with variant GRR copy numbers support normal development. In addition, we show that the assembly of the central RNAi machinery, the RISC (RNA induced silencing complex, is unimpaired in embryos when GRR copy number is altered. In fact, we find that GRR copy number is highly variable in natural D. melanogaster populations as well as in laboratory strains. Finally, while many other insects share an extensive, glutamine-rich Ago2 amino-terminal domain, its primary sequence varies drastically between species. Our data indicate that GRR variation does not modulate an essential function of Ago2 and that the amino-terminal domain of Ago2 is subject to rapid evolution.

  6. The slicer activity of ARGONAUTE1 is required specifically for the phasing, not production, of trans-acting short interfering RNAs in Arabidopsis

    DEFF Research Database (Denmark)

    Arribas Hernandez, Laura; Marchais, Antonin; Poulsen, Christian

    2016-01-01

    ARGONAUTE1 (AGO1) mediates posttranscriptional silencing by microRNAs (miRNAs) and short interfering RNAS (siRNAs). AGO1-catalyzed RNA cleavage (slicing) represses miRNA targets, but current models also highlight the roles of slicing in formation of siRNAs and siRNA-AGO1 complexes. miRNA-guided s......ARGONAUTE1 (AGO1) mediates posttranscriptional silencing by microRNAs (miRNAs) and short interfering RNAS (siRNAs). AGO1-catalyzed RNA cleavage (slicing) represses miRNA targets, but current models also highlight the roles of slicing in formation of siRNAs and siRNA-AGO1 complexes. mi...... is required for assembly of active AGO1-siRNA complexes in vivo, and many AGO1-bound siRNAs are trimmed in the absence of slicer activity. Remarkably, seedlings defective in AGO1 slicer activity produce abundant siRNAs from tasiRNA loci in vivo. These siRNAs depend on RDR6 and SUPPRESSOR OF GENE SILENCING3...

  7. Structural Basis for piRNA 2-O-methylated 3-end Recognition by Piwi PAZ (Piwi/Argonaute/Awille) Domains

    Energy Technology Data Exchange (ETDEWEB)

    Y Tian; D Simanshu; J Ma; D Patel

    2011-12-31

    Argonaute and Piwi proteins are key players in the RNA silencing pathway, with the former interacting with micro-RNAs (miRNAs) and siRNAs, whereas the latter targets piwi-interacting RNAs (piRNAs) that are 2'-O-methylated (2'-OCH{sub 3}) at their 3' ends. Germline-specific piRNAs and Piwi proteins play a critical role in genome defense against transposable elements, thereby protecting the genome against transposon-induced defects in gametogenesis and fertility. Humans contain four Piwi family proteins designated Hiwi1, Hiwi2, Hiwi3, and Hili. We report on the structures of Hili-PAZ (Piwi/Argonaute/Zwille) domain in the free state and Hiwi1 PAZ domain bound to self-complementary 14-mer RNAs (12-bp + 2-nt overhang) containing 2'-OCH{sub 3} and 2'-OH at their 3' ends. These structures explain the molecular basis underlying accommodation of the 2'-OCH{sub 3} group within a preformed Hiwi1 PAZ domain binding pocket, whose hydrophobic characteristics account for the preferential binding of 2'-OCH{sub 3} over 2'-OH 3' ends. These results contrast with the more restricted binding pocket for the human Ago1 PAZ domain, which exhibits a reverse order, with preferential binding of 2'-OH over 2'-OCH{sub 3} 3' ends.

  8. French validation of the Barcelona Music Reward Questionnaire

    Directory of Open Access Journals (Sweden)

    Joe Saliba

    2016-03-01

    Full Text Available Background. The Barcelona Music Reward Questionnaire (BMRQ questionnaire investigates the main facets of music experience that could explain the variance observed in how people experience reward associated with music. Currently, only English and Spanish versions of this questionnaire are available. The objective of this study is to validate a French version of the BMRQ. Methods. The original BMRQ was translated and adapted into an international French version. The questionnaire was then administered through an online survey aimed at adults aged over 18 years who were fluent in French. Statistical analyses were performed and compared to the original English and Spanish version for validation purposes. Results. A total of 1,027 participants completed the questionnaire. Most responses were obtained from France (89.4%. Analyses revealed that congruence values between the rotated loading matrix and the ideal loading matrix ranged between 0.88 and 0.96. Factor reliabilities of subscales (i.e., Musical Seeking, Emotion Evocation, Mood Regulation, Social Reward and Sensory-Motor also ranged between 0.88 and 0.96. In addition, reliability of the overall factor score (i.e., Music reward was 0.91. Finally, the internal consistency of the overall scale was 0.85. The factorial structure obtained in the French translation was similar to that of the original Spanish and English samples. Conclusion. The French version of the BMRQ appears valid and reliable. Potential applications of the BMRQ include its use as a valuable tool in music reward and emotion research, whether in healthy individuals or in patients suffering from a wide variety of cognitive, neurologic and auditory disorders.

  9. The effects of hot nights on mortality in Barcelona, Spain

    Science.gov (United States)

    Royé, D.

    2017-12-01

    Heat-related effects on mortality have been widely analyzed using maximum and minimum temperatures as exposure variables. Nevertheless, the main focus is usually on the former with the minimum temperature being limited in use as far as human health effects are concerned. Therefore, new thermal indices were used in this research to describe the duration of night hours with air temperatures higher than the 95% percentile of the minimum temperature (hot night hours) and intensity as the summation of these air temperatures in degrees (hot night degrees). An exposure-response relationship between mortality due to natural, respiratory, and cardiovascular causes and summer night temperatures was assessed using data from the Barcelona region between 2003 and 2013. The non-linear relationship between the exposure and response variables was modeled using a distributed lag non-linear model. The estimated associations for both exposure variables and mortality shows a relationship with high and medium values that persist significantly up to a lag of 1-2 days. In mortality due to natural causes, an increase of 1.1% per 10% (CI95% 0.6-1.5) for hot night hours and 5.8% per each 10° (CI95% 3.5-8.2%) for hot night degrees is observed. The effects of hot night hours reach their maximum with 100% and lead to an increase by 9.2% (CI95% 5.3-13.1%). The hourly description of night heat effects reduced to a single indicator in duration and intensity is a new approach and shows a different perspective and significant heat-related effects on human health.

  10. Analysis of the radiometric survey during the Argonauta reactor operation

    International Nuclear Information System (INIS)

    Oliveira, Eara de S.L.; Cardozo, Katia K.M.; Silva, Joao Carlos P.; Santos, Joao Regis dos

    2013-01-01

    The Argonaut reactor at the Institute of Nuclear Engineering-IEN/CNEN, operates normally, the powers between 1.7 and 340 W on neutrongraphy procedures, production of radionuclides and experimental reactor physics lessons to postgraduate courses. The doses from neutrons and gamma radiation are measured when the reactor is critical, inside the reactor hall and surrounding regions. A study of the data obtained was performed to evaluate the daily need of this survey in the reactor hall. Taking into account the principle ALARA, which aims to optimize and minimize the dose received by the individual, we propose, in this work, through an analysis of the acquired data in occupational radiometric surveys, a reformulation of the area monitoring routine practiced by the team of radiological protection of the Institute of Nuclear Engineering - IEN/CNEN-RJ, whereas other monitoring routines regarding the radiological protection are also applied in the routine of the reactor. The operations under review occurred with the reactor operating 340 W power at intervals of 60, 120 and 180 minutes, in monitoring points in controlled areas, supervised and free. The results showed significant dose values in the output of the J-Channel 9 when the operation occurs with this open. With 180 minutes of operation, the measured values of dose rate were lower than the values at 60 min and 120 operations min. At the point in the supervised area, offsite to the reactor hall, situated in the direction of the J-Channel 9, the value reduces more than 14% in any operating time in relation to the dose rate measured at the point opposite the canal. There is a 50% reduction in the dose rates for operations with and J-9 closed. The results suggest a new frequency of radiometric survey whose mode of operation is maintained in similar conditions, since combined with other relevant practices of radiation protection

  11. Reactor Physics

    Energy Technology Data Exchange (ETDEWEB)

    Ait Abderrahim, A

    2001-04-01

    The Reactor Physics and MYRRHA Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis of reactor fuel. This expertise is applied in the Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments by means of neutron and gamma calculations. The activities of the Fuzzy Logic and Intelligent Technologies in Nuclear Science programme cover several domains outside the department. Progress and achievements in these topical areas in 2000 are summarised.

  12. Reactor Physics

    International Nuclear Information System (INIS)

    Ait Abderrahim, A.

    2001-01-01

    The Reactor Physics and MYRRHA Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis of reactor fuel. This expertise is applied in the Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments by means of neutron and gamma calculations. The activities of the Fuzzy Logic and Intelligent Technologies in Nuclear Science programme cover several domains outside the department. Progress and achievements in these topical areas in 2000 are summarised

  13. Reactor Physics

    Energy Technology Data Exchange (ETDEWEB)

    Ait Abderrahim, A

    2002-04-01

    SCK-CEN's Reactor Physics and MYRRHA Department offers expertise in various areas of reactor physics, in particular in neutron and gamma calculations, reactor dosimetry, reactor operation and control, reactor code benchmarking and reactor safety calculations. This expertise is applied in the Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 materials testing reactor dosimetry, and the preparation and interpretation of irradiation experiments by means of neutron and gamma calculations. The activities of the Fuzzy Logic and Intelligent Technologies in Nuclear Science programme cover several domains outside the department. Progress and achievements in these topical areas in 2001 are summarised.

  14. The Barcelona agreement: a manifesto towards the spearfishing of the future

    Directory of Open Access Journals (Sweden)

    Valerio Sbragaglia

    2016-09-01

    Full Text Available The Spearfishing Association of Barcelona (APS recently celebrated its 70th anniversary and decided to write a manifesto called: “The Barcelona Agreement: A Manifesto Towards the Spearfishing of the Future”. The Manifesto was discussed and approved during a round table at the Maritime Museum of Barcelona on 27 February 2016, in which delegates of several stakeholders took part. The Agreement is a revision of the most important points that the authors consider to be fundamental for a sustainable development of spearfishing in the future. The authors expect that this manifesto will be a starting point for a constructive discussion to increase knowledge, efficient practice and effective management of spearfishing.

  15. Reactor safeguards

    CERN Document Server

    Russell, Charles R

    1962-01-01

    Reactor Safeguards provides information for all who are interested in the subject of reactor safeguards. Much of the material is descriptive although some sections are written for the engineer or physicist directly concerned with hazards analysis or site selection problems. The book opens with an introductory chapter on radiation hazards, the construction of nuclear reactors, safety issues, and the operation of nuclear reactors. This is followed by separate chapters that discuss radioactive materials, reactor kinetics, control and safety systems, containment, safety features for water reactor

  16. Reactor operation

    CERN Document Server

    Shaw, J

    2013-01-01

    Reactor Operation covers the theoretical aspects and design information of nuclear reactors. This book is composed of nine chapters that also consider their control, calibration, and experimentation.The opening chapters present the general problems of reactor operation and the principles of reactor control and operation. The succeeding chapters deal with the instrumentation, start-up, pre-commissioning, and physical experiments of nuclear reactors. The remaining chapters are devoted to the control rod calibrations and temperature coefficient measurements in the reactor. These chapters also exp

  17. De Craft Barcelona a Metáfora : un plan de reposicionamiento

    OpenAIRE

    Ruiz Velasco, Lídia

    2016-01-01

    Craft Barcelona és un bar especialitzat en cervesa artesana, pinxos i música en directe ubicat en el cor de Barcelona. És un negocio amb evident potencial, treballa dins del sector de la cervesa artesanal i destaca per la seva oferta d'experiències al client, però els beneficis no corresponen amb les expectatives. Aquest projecte presenta un renovat pla de màrqueting basat en reposicionar la marca del bar, donant especial atenció al concepte, el valor diferencial i la promoció per aconseguir ...

  18. Cosas de mujeres: familias monoparentales dominicanas en Barcelona y Nueva York Women’s issues: Dominican single-parent families in Barcelona and New York

    Directory of Open Access Journals (Sweden)

    Rosalina Alcalde

    2011-11-01

    Full Text Available Numerosos estudios a escala internacional y española avalan en la actualidad el riesgo de pobreza que presentan los hogares monoparentales encabezados por mujeres en las sociedades contemporáneas desarrolladas. Este artículo recoge  algunos de los principales resultados de sendas investigaciones llevadas a cabo en las ciudades de Barcelona y Nueva York sobre la incidencia de estas formas de hogar entre las mujeres inmigrantes, focalizando el análisis en las mujeres dominicanas.Several international and Spanish studies have shown that one-parent families are at considerable risk of poverty in contemporary and developed societies, particularly when the mother is the head, which is usually the case. This paper  provides the main results of some research carried out in Barcelona and New York about one-parent families and immigrant women, with particular emphasis on Dominican women.

  19. Research Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Martens, Frederick H. [Argonne National Laboratory; Jacobson, Norman H.

    1968-09-01

    This booklet discusses research reactors - reactors designed to provide a source of neutrons and/or gamma radiation for research, or to aid in the investigation of the effects of radiation on any type of material.

  20. Nuclear reactors

    International Nuclear Information System (INIS)

    Middleton, J.E.

    1977-01-01

    Reference is made to water cooled reactors and in particular to the cooling system of steam generating heavy water reactors (SGHWR). A two-coolant circuit is described for the latter. Full constructural details are given. (U.K.)

  1. Study of compost maturity produced in the composting plant in Granollers (Barcelona, Spain); Estudio de la madurez del compost producido en la planta de compostaje de Granollers (Barcelona)

    Energy Technology Data Exchange (ETDEWEB)

    Diez Fontanet, E.; Alba Munoz, G.; Aguilera Riba, F.; Sanchez Ferrer, A.

    2000-07-01

    The following article presents the determination of important parameters, which have been traditionally used in the evaluation of the compost maturity. Compost from a tunnel plant placed in Granollers (Barcelona) has been chosen during the maturation stage. The results showed that self-heating test and organic material content are the most significant maturity indexes, whereas Solvita differed from the rest of analysis. Other important parameters, such as ion exchange capacity, water content, conductivity and pH were also determined. (Author)

  2. Reactor Neutrinos

    OpenAIRE

    Kim, Soo-Bong; Lasserre, Thierry; Wang, Yifang

    2013-01-01

    We review the status and the results of reactor neutrino experiments. Short-baseline experiments have provided the measurement of the reactor neutrino spectrum, and their interest has been recently revived by the discovery of the reactor antineutrino anomaly, a discrepancy between the reactor neutrino flux state of the art prediction and the measurements at baselines shorter than one kilometer. Middle and long-baseline oscillation experiments at Daya Bay, Double Chooz, and RENO provided very ...

  3. BOILING REACTORS

    Science.gov (United States)

    Untermyer, S.

    1962-04-10

    A boiling reactor having a reactivity which is reduced by an increase in the volume of vaporized coolant therein is described. In this system unvaporized liquid coolant is extracted from the reactor, heat is extracted therefrom, and it is returned to the reactor as sub-cooled liquid coolant. This reduces a portion of the coolant which includes vaporized coolant within the core assembly thereby enhancing the power output of the assembly and rendering the reactor substantially self-regulating. (AEC)

  4. Storm water detention tanks in Barcelona; Los depositos de retencion de aguas pluviales de Barcelona: un nuevo enfoque en la lucha contra las inundaciones y la proteccion medioambiental

    Energy Technology Data Exchange (ETDEWEB)

    Pere Malgrat i Bregolat, P.; Verdejo, J. M.; Vilalta i Cambra, A.

    2004-07-01

    Storm water detention tanks are being implemented at first as a solution to the urban flooding problem and afterwards a second function was added to reduce the pollution of the sewerage waters before its overflow to the receiving bodies because these spills can contribute with up to 50% of the total pollution spilled. These solutions are often cheaper and have less impact on the urban activities than the classical solutions such as trunk sewers. In Spain, Barcelona was the first city to build this tanks to avoid flooding and also to reduce the contamination to the receiving waters, with a total volume of 492.200 m''3, operated by Clavegueram de Barcelona (Clabsa). These works have meant a big improvement in the management of the wet weather flows in Barcelona. These tanks have increased the capacity of the sewerage system and decreased the combined sewer overflows to the receiving waters (Besos river and Mediterranean sea). Another advantage is the protection of WWTP against flow variations. The environmental improvement achieved with the tanks is so hug that can even reduce the contamination spilled to the receiving waters around 30% and avoid the destruction of some ecosystems. Also, the contaminated sediments trapped in the detention tank are sen to to the WWTP so the don't reach the receiving waters. Also. the urban space close to the relieving waters are becoming more appreciated for leisure so the recovery and protection of these waters is a must. (Author)

  5. Reactor vessel

    NARCIS (Netherlands)

    Makkee, M.; Kapteijn, F.; Moulijn, J.A.

    1999-01-01

    A reactor vessel (1) comprises a reactor body (2) through which channels (3) are provided whose surface comprises longitudinal inwardly directed parts (4) and is provided with a catalyst (6), as well as buffer bodies (8, 12) connected to the channels (3) on both sides of the reactor body (2) and

  6. Nuclear power reactors

    International Nuclear Information System (INIS)

    1982-11-01

    After an introduction and general explanation of nuclear power the following reactor types are described: magnox thermal reactor; advanced gas-cooled reactor (AGR); pressurised water reactor (PWR); fast reactors (sodium cooled); boiling water reactor (BWR); CANDU thermal reactor; steam generating heavy water reactor (SGHWR); high temperature reactor (HTR); Leningrad (RMBK) type water-cooled graphite moderated reactor. (U.K.)

  7. Reactor physics and reactor computations

    International Nuclear Information System (INIS)

    Ronen, Y.; Elias, E.

    1994-01-01

    Mathematical methods and computer calculations for nuclear and thermonuclear reactor kinetics, reactor physics, neutron transport theory, core lattice parameters, waste treatment by transmutation, breeding, nuclear and thermonuclear fuels are the main interests of the conference

  8. Research reactors

    International Nuclear Information System (INIS)

    Merchie, Francois

    2015-10-01

    This article proposes an overview of research reactors, i.e. nuclear reactors of less than 100 MW. Generally, these reactors are used as neutron generators for basic research in matter sciences and for technological research as a support to power reactors. The author proposes an overview of the general design of research reactors in terms of core size, of number of fissions, of neutron flow, of neutron space distribution. He outlines that this design is a compromise between a compact enough core, a sufficient experiment volume, and high enough power densities without affecting neutron performance or its experimental use. The author evokes the safety framework (same regulations as for power reactors, more constraining measures after Fukushima, international bodies). He presents the main characteristics and operation of the two families which represent almost all research reactors; firstly, heavy water reactors (photos, drawings and figures illustrate different examples); and secondly light water moderated and cooled reactors with a distinction between open core pool reactors like Melusine and Triton, pool reactors with containment, experimental fast breeder reactors (Rapsodie, the Russian BOR 60, the Chinese CEFR). The author describes the main uses of research reactors: basic research, applied and technological research, safety tests, production of radio-isotopes for medicine and industry, analysis of elements present under the form of traces at very low concentrations, non destructive testing, doping of silicon mono-crystalline ingots. The author then discusses the relationship between research reactors and non proliferation, and finally evokes perspectives (decrease of the number of research reactors in the world, the Jules Horowitz project)

  9. Reactor container

    International Nuclear Information System (INIS)

    Ichiki, Tadaharu; Nagatomi, Shozo.

    1976-01-01

    Object: To provide a jet and missile protective wall of a configuration being inflated toward the center of a reactor container on the inside of a body of the reactor container disposed within a biological shield wall to thereby increase safety of the reactor container. Structure: A jet and missile protective wall comprised of curved surfaces internally formed with a plurality of arch inflations filled with concrete between inner and outer iron plates and shape steel beam is provided between a reactor container surrounded by a biological shield wall and a thermal shield wall surrounding the reactor pressure vessel, and an adiabatic heat insulating material is filled in space therebetween. (Yoshino, Y.)

  10. Assessing Public Leadership Styles for Innovation: A Comparison of Copenhagen, Rotterdam and Barcelona

    NARCIS (Netherlands)

    L.M. Ricard (Lykke Margot); E-H. Klijn (Erik-Hans); J.M. Lewis (Jenny M.); T. Ysa (Tamyko)

    2017-01-01

    textabstractThis article explores which leadership qualities public managers regard as important for public innovation. It is based on a survey of 365 senior public managers in Copenhagen, Rotterdam and Barcelona. Five perspectives on leadership were identified and tested using a number of items.

  11. Assessing public leadership styles for innovation: A comparison of Copenhagen, Rotterdam and Barcelona

    DEFF Research Database (Denmark)

    Ricard, Lykke Margot; Lewis, Jenny M; Klijn, Erik Hans

    2017-01-01

    This article explores which leadership qualities public managers regard as important for public innovation. It is based on a survey of 365 senior public managers in Copenhagen, Rotterdam and Barcelona. Five perspectives on leadership were identified and tested using a number of items. Some...

  12. Online network organization of Barcelona en Comú, an emergent movement-party.

    Science.gov (United States)

    Aragón, Pablo; Gallego, Helena; Laniado, David; Volkovich, Yana; Kaltenbrunner, Andreas

    2017-01-01

    The emerging grassroots party Barcelona en Comú won the 2015 Barcelona City Council election. This candidacy was devised by activists involved in the Spanish 15M movement to transform citizen outrage into political change. On the one hand, the 15M movement was based on a decentralized structure. On the other hand, political science literature postulates that parties develop oligarchical leadership structures. This tension motivates to examine whether Barcelona en Comú preserved a decentralized structure or adopted a conventional centralized organization. In this study we develop a computational methodology to characterize the online network organization of every party in the election campaign on Twitter. Results on the network of retweets reveal that, while traditional parties are organized in a single cluster, for Barcelona en Comú two well-defined groups co-exist: a centralized cluster led by the candidate and party accounts, and a decentralized cluster with the movement activists. Furthermore, results on the network of replies also shows a dual structure: a cluster around the candidate receiving the largest attention from other parties, and another with the movement activists exhibiting a higher predisposition to dialogue with other parties.

  13. An Ethnographic Approach to the Study of Linguistic Varieties Used by Young Latin Americans in Barcelona

    Science.gov (United States)

    Corona, Víctor

    2017-01-01

    This chapter explains part of a broader study. To be specific, it is based on the research the author has been conducting in the city of Barcelona from 2005 through to the present day on what it means to "be Latino" in a youth- and school-based context. The work was essentially inspired by the ethnography of communication and the…

  14. Spatial variability of trace elements and sources for improved exposure assessment in Barcelona

    NARCIS (Netherlands)

    Cruz Minguillon, Maria; Cirach, Marta; Hoek, Gerard; Brunekreef, Bert; Tsai, Ming; de Hoogh, Kees; Jedynska, Aleksandra; Kooter, Ingeborg M.; Nieuwenhuijsen, Mark; Querol, Xavier

    Trace and major elements concentrations in PM10 and PM2.5 were measured at 20 sites spread in the Barcelona metropolitan area (1 rural background, 6 urban background, 13 road traffic sites) and at 1 reference site. Three 2-week samples per site and size fraction were collected during 2009 using low

  15. Spatial variability of trace elements and sources for improved exposure assessment in Barcelona

    NARCIS (Netherlands)

    Minguillón, M.C.; Cirach, M.; Hoek, G.; Brunekreef, B.; Tsai, M.; Hoogh, K. de; Jedynska, A.; Kooter, I.M.; Nieuwenhuijsen, M.; Querol, X.

    2014-01-01

    Trace and major elements concentrations in PM10 and PM2.5 were measured at 20 sites spread in the Barcelona metropolitan area (1 rural background, 6 urban background, 13 road traffic sites) and at 1 reference site. Three 2-week samples per site and size fraction were collected during 2009 using low

  16. Barcelona's water supply, 1867–1967 : the transition to a modern system

    OpenAIRE

    Guàrdia Bassols, Manuel; Rosselló i Nicolau, Maribel; Garriga Bosch, Sergi

    2013-01-01

    Barcelona's water supply since 14th century to 1867, the Eixample's water supply problem the development of modern water supply since 1867 to 1967 the new sanitation system impact on water consumption water's slow entry into the domestic sphere from post-war restrictions to widespread water consumption. Peer Reviewed

  17. El pabellón de Mies Van Der Rohe en Barcelona

    Directory of Open Access Journals (Sweden)

    Eduardo Meissner Grebe

    1989-06-01

    Full Text Available Circunstancias especiales me han llevado, una vez más, a Barcelona, ciudad de manifiestas afinidades electivas. Me espera un afán especial, la venida al recientemente reconstruido Pabellón de Exposiciones, de Mies van der Rohe.

  18. Viruses 2018 - Breakthroughs in Viral Replication - Barcelona, Spain | Center for Cancer Research

    Science.gov (United States)

    This Conference is held in Barcelona, Spain on February 7 - 9, 2018. For registration information please go to the conference website at https://sciforum.net/conference/Viruses-2018 Dates to remember: Abstract Submission: 31 Oct. 2017 Acceptance Notification: 25 Nov. 2017 Full Paper Submission: 1 Aug. 2018

  19. Autoridad e imagen de la epidemia. La fiebre amarillean la Barcelona del siglo XIX

    Directory of Open Access Journals (Sweden)

    José Antonio Ortiz García

    2017-12-01

    Full Text Available El propósito de este estudio es acercarse al contexto epidémico de Barcelona a lo largo del siglo XIX. De forma concreta, la investigación se centra en la fiebre amarilla sufrida en los años 1821 y 1870. El amplio abanico de referencias propone una mirada interdisciplinar sobre la medicina y las enfermedades en su marco histórico, artístico, social y religioso. ¿Qué reacción tuvieron los poderes municipales?, ¿Qué tipologías artísticas se desarrollaron durante y tras la infección deletérea en Barcelona? The aim of this study is an approach to the epidemic background in Barcelona during the XIX century. Specifically, the research is focus on the yellow fever that was suffered en 1821 and 1870. e large spectrum of references proposes an interdisciplinary point of view about medicine and illnesses in an historic, artistic, social and religious context. How was the official reaction of the municipal powers? What kind of artistic productions were made during and after de epidemic infection in Barcelona?

  20. Latino Trajectories in Barcelona: A Longitudinal Ethnographic Study of Latin American Adolescents in Catalonia

    Science.gov (United States)

    Corona, Víctor

    2016-01-01

    The ethnographic research presented in this paper consists of two parts developed chronologically. The first part is based on a study (Corona, V., Nussbaum, L., & Unamuno, V. [2012]. The emergence of new linguistic repertoires among Barcelona's youth of Latin American origin. "International Journal of Bilingual Education and…

  1. Trends in socioeconomic inequalities in cancer mortality in Barcelona: 1992–2003

    Directory of Open Access Journals (Sweden)

    Pasarín M Isabel

    2009-01-01

    Full Text Available Abstract Background The objective of this study was to assess trends in cancer mortality by educational level in Barcelona from 1992 to 2003. Methods The study population comprised Barcelona inhabitants aged 20 years or older. Data on cancer deaths were supplied by the system of information on mortality. Educational level was obtained from the municipal census. Age-standardized rates by educational level were calculated. We also fitted Poisson regression models to estimate the relative index of inequality (RII and the Slope Index of Inequalities (SII. All were calculated for each sex and period (1992–1994, 1995–1997, 1998–2000, and 2001–2003. Results Cancer mortality was higher in men and women with lower educational level throughout the study period. Less-schooled men had higher mortality by stomach, mouth and pharynx, oesophagus, larynx and lung cancer. In women, there were educational inequalities for cervix uteri, liver and colon cancer. Inequalities of overall and specific types of cancer mortality remained stable in Barcelona; although a slight reduction was observed for some cancers. Conclusion This study has identified those cancer types presenting the greatest inequalities between men and women in recent years and shown that in Barcelona there is a stable trend in inequalities in the burden of cancer.

  2. Nature-based solutions for urban landscapes under post-industrialization and globalization: Barcelona versus Shanghai.

    Science.gov (United States)

    Fan, Peilei; Ouyang, Zutao; Basnou, Corina; Pino, Joan; Park, Hogeun; Chen, Jiquan

    2017-07-01

    Using Barcelona and Shanghai as case studies, we examined the nature-based solutions (NBS) in urban settings-specifically within cities experiencing post-industrialization and globalization. Our specific research questions are: (1) What are the spatiotemporal changes in urban built-up land and green space in Barcelona and Shanghai? (2) What are the relationships between economic development, exemplified by post-industrialization, globalization, and urban green space? Urban land use and green space change were evaluated using data derived from a variety of sources, including satellite images, landscape matrix indicators, and a land conversion matrix. The relationships between economic development, globalization, and environmental quality were analyzed through partial least squares structural equation modeling based on secondary statistical data. Both Barcelona and Shanghai have undergone rapid urbanization, with urban expansion in Barcelona beginning in the 1960s-1970s and in Shanghai in the last decade. While Barcelona's urban green space and green space per capita began declining between the 1950s and 1990s, they increased slightly over the past two decades. Shanghai, however, has consistently and significantly improved urban green space and green space per capita over the past six decades, especially since the economic reform in 1978. Economic development has a direct and significant influence on urban green space for both cities and post-industrialization had served as the main driving force for urban landscape change in Barcelona and Shanghai. Based on secondary statistical and qualitative data from on-site observations and interviews with local experts, we highlighted the institution's role in NBS planning. Furthermore, aspiration to become a global or globalizing city motivated both cities to use NBS planning as a place-making tool to attract global investment, which is reflected in various governing policies and regulations. The cities' effort to achieve a

  3. Research reactors

    International Nuclear Information System (INIS)

    Kowarski, L.

    1955-01-01

    It brings together the techniques data which are involved in the discussion about the utility for a research institute to acquire an atomic reactor for research purposes. This type of decision are often taken by non-specialist people who can need a brief presentation of a research reactor and its possibilities in term of research before asking advises to experts. In a first part, it draws up a list of the different research programs which can be studied by getting a research reactor. First of all is the reactor behaviour and kinetics studies (reproducibility factor, exploration of neutron density, effect of reactor structure, effect of material irradiation...). Physical studies includes study of the behaviour of the control system, studies of neutron resonance phenomena and study of the fission process for example. Chemical studies involves the study of manipulation and control of hot material, characterisation of nuclear species produced in the reactor and chemical effects of irradiation on chemical properties and reactions. Biology and medicine research involves studies of irradiation on man and animals, genetics research, food or medical tools sterilization and neutron beams effect on tumour for example. A large number of other subjects can be studied in a reactor research as reactor construction material research, fabrication of radioactive sources for radiographic techniques or applied research as in agriculture or electronic. The second part discussed the technological considerations when choosing the reactor type. The technological factors, which are considered for its choice, are the power of the reactor, the nature of the fuel which is used, the type of moderator (water, heavy water, graphite or BeO) and the reflector, the type of coolants, the protection shield and the control systems. In the third part, it described the characteristics (place of installation, type of combustible and comments) and performance (power, neutron flux ) of already existing

  4. Hybrid reactors

    International Nuclear Information System (INIS)

    Moir, R.W.

    1980-01-01

    The rationale for hybrid fusion-fission reactors is the production of fissile fuel for fission reactors. A new class of reactor, the fission-suppressed hybrid promises unusually good safety features as well as the ability to support 25 light-water reactors of the same nuclear power rating, or even more high-conversion-ratio reactors such as the heavy-water type. One 4000-MW nuclear hybrid can produce 7200 kg of 233 U per year. To obtain good economics, injector efficiency times plasma gain (eta/sub i/Q) should be greater than 2, the wall load should be greater than 1 MW.m -2 , and the hybrid should cost less than 6 times the cost of a light-water reactor. Introduction rates for the fission-suppressed hybrid are usually rapid

  5. Heterogeneous reactors

    International Nuclear Information System (INIS)

    Moura Neto, C. de; Nair, R.P.K.

    1979-08-01

    The microscopic study of a cell is meant for the determination of the infinite multiplication factor of the cell, which is given by the four factor formula: K(infinite) = n(epsilon)pf. The analysis of an homogeneous reactor is similar to that of an heterogeneous reactor, but each factor of the four factor formula can not be calculated by the formulas developed in the case of an homogeneous reactor. A great number of methods was developed for the calculation of heterogeneous reactors and some of them are discussed. (Author) [pt

  6. Evolution of industrial wastewater pollution in the Barcelona Metropolitan Area; Evolucion de la contaminacion industrial en las aguas residuales del area metropolitana de Barcelona

    Energy Technology Data Exchange (ETDEWEB)

    Mantecon Pascual, R.

    2005-07-01

    The Environmental Agency of the Barcelona Metropolitan Area has full powers regarding sewerage. Industrial wastewater emptied into the public sewer system has been monitored and analysed since 1988. the data showing the evolution of the pollution in industrial wastewater are presented, broken down by activities and parameters. These data are based on the analysis of 14,528 samples taken during 19,555 inspections of 5,655 factories. It was found that there has been a gradual improvement in the quality of the effluents. Failure to meet the requirements concerning one or more of the physico-chemical parameters fell from 71% to 39% of the samples analysed. (Author)

  7. Muusikamaailm : Sibeliuse preemia laureaat on Ligeti. Uusooperid Turus, Milanos, Barcelonas. Aasta dirigent on Daniel Barenboim / Priit Kuusk

    Index Scriptorium Estoniae

    Kuusk, Priit, 1938-

    2000-01-01

    Wihuri fondi Sibeliuse preemia sai G. Ligeti. Uusooperitest Turu toomkirikus, Milano La Scala ja Barcelona Gran Teatre del Liceu laval. D. Barenboim pälvis heliplaadipreemia Echo Klassik koos aasta dirigendi 2000 tiitliga

  8. Nuclear reactor

    International Nuclear Information System (INIS)

    Mysels, K.J.; Shenoy, A.S.

    1976-01-01

    A nuclear reactor is described in which the core consists of a number of fuel regions through each of which regulated coolant flows. The coolant from neighbouring fuel regions is combined in a manner which results in an averaging of the coolant temperature at the outlet of the core. By this method the presence of hot streaks in the reactor is reduced. (UK)

  9. Recerca i ensenyament agronòmic a la Catalunya del vuit-cents : la granja experimental de Barcelona

    OpenAIRE

    Cartañà i Pinén, Jordi

    2008-01-01

    Barcelona’s Experimental Farm was the agronomic center of reference of Barcelona’s regions between 1853 and 1911. In addition to its educational function, it was an experimental center where many of the new features that agronomic science was developing in Europe were tested, emphasizing among others the studies on the performance of fodders, cereals, tobacco, beet and other vegetables, as well as the diffusion of new technologies. It was one of the first state institutions ...

  10. Queer Genealogies in Transnational Barcelona: Maria-Mercè Marçal, Cristina Peri Rossi, and Flavia Company

    OpenAIRE

    Tanna, Natasha

    2017-01-01

    This dissertation examines lesbian and queer desire in texts in Catalan and Spanish written in Barcelona, Montevideo, and Buenos Aires from the 1960s to the present. In the texts, desire includes but is not limited to the erotic; it encompasses issues of queer textuality, relationality, and literary transmission. I focus on the works of three authors who have spent the majority of their lives in Barcelona. However, the city appears almost incidentally in their works; the genealogies that the ...

  11. The need to adapt to travel expenditure patterns: a study comparing business and leisure tourists in Barcelona

    OpenAIRE

    Moll de Alba Cabot, Jorge Eduardo; Prats Planagumà, Lluís; Coromina Soler, Lluís

    2016-01-01

    An understanding of expenditure patterns is vital to travel organizers and destination marketers. Using surveys conducted by the Barcelona Tourism Board (Turisme de Barcelona), this study profiled the trip by purpose: leisure or business, and investigated the relationships between travel expenditure, length of stay, repeat visits and satisfaction. Different trip-related and socio-demographic variables, such as trip purpose, number of nights spent and repeat visits were found to contribute to ...

  12. Nuclear reactor

    International Nuclear Information System (INIS)

    Tilliette, Z.

    1975-01-01

    A description is given of a nuclear reactor and especially a high-temperature reactor in which provision is made within a pressure vessel for a main cavity containing the reactor core and a series of vertical cylindrical pods arranged in spaced relation around the main cavity and each adapted to communicate with the cavity through two collector ducts or headers for the primary fluid which flows downwards through the reactor core. Each pod contains two superposed steam-generator and circulator sets disposed in substantially symmetrical relation on each side of the hot primary-fluid header which conveys the primary fluid from the reactor cavity to the pod, the circulators of both sets being mounted respectively at the bottom and top ends of the pod

  13. Patrimonios incómodos para la imagen que Barcelona ofrece al mundo

    Directory of Open Access Journals (Sweden)

    Reventós Gil de Biedma, Ana

    2007-01-01

    Full Text Available Barcelona is today a city of reference within the world’s tourist map. Created as a process of both an economic evolution towards the third sector as well as a powerful brand image, from the Olympics up to nowadays. Within this scene, Culture and Arts have been pushed at the center of the strategy, building a “cultural spectacle” aimed to differentiate the city’s offer in the market. Furthermore, some specific icons oriented to give it a Catalan, Cosmopolitan and Modern identity are promoted, adding also new symbolic values such as diversity, tolerance or Mediterranean character. Meaning that some range of cultural heritages should be reinforced while others are put aside or even hidden. Barcelona appears then as the result of a perfectly drawn political strategic planning, under the appearance of social consensus and citizens’ involvement

  14. Mercury & Caballé : Barcelona : la construcció d'un somni

    OpenAIRE

    Herreras, Aleix

    2013-01-01

    L’any 1988 va sortir a la venda un disc de culte que encara avui desperta la curiositat de fans, curiosos i musicòlegs d’arrèu: Barcelona. Els seus creadors, Freddie Mercury i Montserrat Caballé, ja havien llançat una exitosa cançó amb el mateix títol l’any anterior, que serviria com a himne promocional dels Jocs Olímpics de Barcelona de l’any 1992. Però, com dues persones procedents d’entorns tan diferents van arribar a treballar junts? Endinsant‐nos en una història d’admiració, amistat, i t...

  15. [Knowledge of electronic cigarettes and their perceived harmfulness among the adult population in Barcelona (Spain)].

    Science.gov (United States)

    Martínez-Sánchez, José M; Fu, Marcela; Ballbè, Montse; Martín-Sánchez, Juan Carlos; Saltó, Esteve; Fernández, Esteve

    2015-01-01

    To describe knowledge of electronic cigarettes (e-cigarettes) and their perceived harmfulness in the population of Barcelona in 2013-2014. We used participants from a longitudinal study of a representative sample of the adult population in the city of Barcelona (n=736). The field work was conducted between May 2013 and February 2014. Awareness of e-cigarette was 79.2%. The average level of knowledge was 4.4 points out of 10; there were statistically significant differences according to age, educational level, tobacco consumption, and nicotine dependence. Most participants had learned about e-cigarettes through traditional media (57.8%). Nearly half (47.2%) of the participants believed that e-cigarettes are less harmful than conventional cigarettes. Advertising of e-cigarettes in the media should be regulated because there is still scarce scientific evidence about the usefulness and harmful effects of these devices. Copyright © 2014 SESPAS. Published by Elsevier Espana. All rights reserved.

  16. Multi-level Governance as an Alternative: The Municipality of Barcelona and the Ciutat Refugi Plan

    Directory of Open Access Journals (Sweden)

    Ezgi Irgil

    2016-12-01

    Full Text Available This paper analyses the response of the Municipality of Barcelona to the Syrian refugee crisis in Europe as an alternative solution that challenges the national government’s restrictive approach. This response introduces the Ciutat Refugi Plan with a city-to-city network at the municipal level that involves other European cities in creating safe routes for refugees at the local government level. In line with multi-level governance theory, I argue that central governments’ inaction has pressured local governments to take action during the Syrian refugee influx. Relying on the influence of local government networks, the Municipality of Barcelona uses discourse as a tool of action in opening discursive spaces for humanitarian political responses to the refugee crisis. Using critical discourse analysis, I test this argument by examining in-depth interviews, speeches of people in power that have appeared in news articles, and statements on official websites.

  17. The Symbol of Modern Architecture. About the Barcelona Pavilion by Mies van der Rohe

    Directory of Open Access Journals (Sweden)

    Ilya Lezhava

    2016-08-01

    Full Text Available The article reviews peculiarities of the architectural and spatial organization of the Barcelona Pavilion designed by Mies van der Rohe and the reasons for its rehabilitation after a long period of oblivion. The analysis of the display shows that the only exhibit item of the Barcelona Pavilion is its architecture and furniture compositions designed by the author. The characteristics of partitions, screens, glass surfaces and the position of transparent walls of this construction are of special interest. The style of the building designed by Mies van der Rohe may be referred to formalism, rather than the traditional European functionalism. The article shows a special role of this construction in the architect’s creative work

  18. Los cambios del comercio étnico en los suburbios de Barcelona (2004-2011

    Directory of Open Access Journals (Sweden)

    Jordi Nofre

    2014-06-01

    Full Text Available CHANGES IN THE ETHNIC RETAIL TRADE IN THE SUBURBS OF BARCELONA (2004-2011. A DEBATE ABOUT PROCESSES OF ETHNOGENTRIFICATION. This paper aims to explore an early process of ethnogentrification, previously reported by the local media, in a working-class suburban district of Barcelona. Following a brief description of the research carried out in 2004 (published in 2006 on the urban and social changes in this study area, this paper presents a comparative analysis between the continuities and changes on ‘retailscape’ in the period of 2004 to 2011, by updating its ethnic-retail cartography. Comparative results will allow to opening up a debate about some lexical abuses on the use of the term ‘ethno-gentrification’ in the specific context of Mediterranean cities.

  19. Study of the radioactive contents in Barcelona's water supply during 1986

    International Nuclear Information System (INIS)

    Ortega, X.; Valles, I.

    1988-01-01

    Throughout 1986 several determinations were carried out of the contents in α and β radioactivity transmitters of different samples of the Barcelona water supply. It could be verified that beta radioactivity was ten times higher in the waters collected in the basin of Llobregat river than water from Ter river. Both rivers are the main sources of Barcelona supply. The reason for this unbalanced result is the high potassic content of the first river, coming from the mining exploitation of the basin. On the other hand, the contamination that could be measured in May, due to the Chernobyl nuclear accident, showed that the supply system from Llobregat river was more sensitive to the incorporation of contaminants carried down by the rain, whereas in the case of Ter river, owing to the presence of impounding regulation, a higher retention time of these waters was obtained. (author)

  20. Dust modelling and forecasting in the Barcelona Supercomputing Center: Activities and developments

    Energy Technology Data Exchange (ETDEWEB)

    Perez, C; Baldasano, J M; Jimenez-Guerrero, P; Jorba, O; Haustein, K; Basart, S [Earth Sciences Department. Barcelona Supercomputing Center. Barcelona (Spain); Cuevas, E [Izanaa Atmospheric Research Center. Agencia Estatal de Meteorologia, Tenerife (Spain); Nickovic, S [Atmospheric Research and Environment Branch, World Meteorological Organization, Geneva (Switzerland)], E-mail: carlos.perez@bsc.es

    2009-03-01

    The Barcelona Supercomputing Center (BSC) is the National Supercomputer Facility in Spain, hosting MareNostrum, one of the most powerful Supercomputers in Europe. The Earth Sciences Department of BSC operates daily regional dust and air quality forecasts and conducts intensive modelling research for short-term operational prediction. This contribution summarizes the latest developments and current activities in the field of sand and dust storm modelling and forecasting.

  1. Technological Modernization and Business Change in the Barcelona Beer Industry, 1870-1913. A Chandlerian Approach

    OpenAIRE

    García Barber, Xavier

    2017-01-01

    The start of the production of bottom-fermented beer in Barcelona, at the beginning of the 1870s, resulted in a drink with organoleptic characteristics that made it more popular: less alcohol and more frothy and transparent than the top-fermented beer made until then. Its production resulted in greater investment in new technologies, including the production of artificial refrigeration, which led to a marked increase in fixed costs. This meant, on the one hand, external financing requirements...

  2. [Confirmed Dengue, Chikungunya and Zika Cases during the Period 2014 to 2016 in Barcelona, Spain].

    Science.gov (United States)

    González, Roser; Camprubí, Esteve; Fernández, Lidia; Millet, Joan Pau; Peracho, Víctor; Gorrindo, Pilar; Avellanés, Ingrid; Romero, Arancha; Caylà, Joan A

    2017-03-07

    Arbovirus infections are a group of diseases whose incidence is increasing and that entail an important problem for public health. The aim of this study was to describe detected cases of arbovirosis in Barcelona, and surveillance and control actions performed in order to reduce the risk of transmission. Descriptive cross-sectional study of confirmed dengue, chikungunya and Zika cases in Barcelona during 2014-2016 (1st trimester). Suspected cases detected in the city were notified to the Epidemiology Department of the Barcelona Public Health Agency, where an epidemiological survey is undertaken and, if appropriate, Urban Pests Surveillance and Control Department is contacted. They perform an entomological inspection and implement control and monitoring actions. We collected sociodemographical, epidemiological, clinical and entomological variables. In 2014, 50 chikungunya and 20 dengue cases were detected; 25 entomological inspections were carried out in residences and 38 in the street. In 2015, 47 chikungunya, 51 dengue and 2 Zika cases were detected; 27 inspections were carried out in residences and 80 in the street. In 2016, 17 chikungunya, 52 dengue and 48 Zika cases were detected; 50 inspections were carried out in residences and 103 in the street. No autochtonous case was detected. We observed an increasing incidence of arbovirosis cases during the 3-year study period. There was a progressive intensification of vector surveillance and control actions (inspections, sample collection…).

  3. Return period curves for extreme 5-min rainfall amounts at the Barcelona urban network

    Science.gov (United States)

    Lana, X.; Casas-Castillo, M. C.; Serra, C.; Rodríguez-Solà, R.; Redaño, A.; Burgueño, A.; Martínez, M. D.

    2018-03-01

    Heavy rainfall episodes are relatively common in the conurbation of Barcelona and neighbouring cities (NE Spain), usually due to storms generated by convective phenomena in summer and eastern and south-eastern advections in autumn. Prevention of local flood episodes and right design of urban drainage have to take into account the rainfall intensity spread instead of a simple evaluation of daily rainfall amounts. The database comes from 5-min rain amounts recorded by tipping buckets in the Barcelona urban network along the years 1994-2009. From these data, extreme 5-min rain amounts are selected applying the peaks-over-threshold method for thresholds derived from both 95% percentile and the mean excess plot. The return period curves are derived from their statistical distribution for every gauge, describing with detail expected extreme 5-min rain amounts across the urban network. These curves are compared with those derived from annual extreme time series. In this way, areas in Barcelona submitted to different levels of flood risk from the point of view of rainfall intensity are detected. Additionally, global time trends on extreme 5-min rain amounts are quantified for the whole network and found as not statistically significant.

  4. Repositioning of Barcelona's Image in the Light of a Redefinition of the Urban Tourism Planning Model

    Directory of Open Access Journals (Sweden)

    Josep-Francesc Valls

    2013-01-01

    Full Text Available El modelo de desarrollo urbanístico-turístico de Barcelona en los últimos quince años ha obtenido un éxito extraordinario en cuanto a número de visitantes, pernoctaciones, llegadas de pasajeros de cruceros, incremento de camas hoteleras y visitas a monumentos de pago. De este modo, la ciudad se ha convertido en una de las ciudades más visitadas de Europa y de mayor crecimiento del número de turistas. Pero, este crecimiento cuantitativo ha generado masificación turística, concentración en determinados barrios, enfrentamiento por el uso del espacio urbano entre turistas y residentes, además de generar algunas deficiencias infraestructurales como la conectividad y la intermodalidad. Estos problemas amenazan la posición competitiva de Barcelona. Este artículo revisa la competitividad entre las ciudades, comparando Barcelona con otras diez ciudades europeas. A partir de un análisis cualitativo a los players internos y externos y de un Estudio Delphi con players externos, se exploran las correcciones que hay que introducir en el modelo y los vectores del repo- sicionamiento. Esta nueva posición refuerza la competitividad en base a tres objetivos: la sostenibilidad del modelo, la gestión integral de la metrópolis turística y su gobernanza, y la orientación al cliente.

  5. [A prospective study of drug-facilitated sexual assault in Barcelona].

    Science.gov (United States)

    Xifró-Collsamata, Alexandre; Pujol-Robinat, Amadeo; Barbería-Marcalain, Eneko; Arroyo-Fernández, Amparo; Bertomeu-Ruiz, Antonia; Montero-Núñez, Francisco; Medallo-Muñiz, Jordi

    2015-05-08

    To determine the frequency and characteristics of suspected drug-facilitated sexual assault (DFSA) among the victims of sexual assault in Barcelona. Prospective study of every adult consulting an emergency service because of alleged sexual assault and receiving forensic assessment in the city of Barcelona in 2011. A total of 35 of 114 cases (30.7%) met suspected DFSA criteria. Compared with the other victims, suspected DFSA cases were more likely to experience amnesia, to have been assaulted by night, after a social situation and by a recently acquainted man, to have used alcohol before the assault and to be foreigners. In this group ethanol was detected in blood or urine in 48.4% of analyzed cases; their mean back calculated blood alcohol concentration was 2.29g/l (SD 0.685). Also, at least one central nervous system drug other than ethanol was detected in 60,6%, mainly stimulant drugs of abuse. Suspected DFSA is frequent among victims of alleged sexual assault in Barcelona nowadays. The depressor substance most commonly encountered is alcohol, which contributes to victims' vulnerability. Copyright © 2015 Elsevier España, S.L.U. All rights reserved.

  6. SLOWPOKE reactor

    International Nuclear Information System (INIS)

    Evans, D.J.R.; Downs, W.E.

    1974-01-01

    The SLOWPOKE reactor is described, which is a small pool type with thermal neutron fluxes ranging from 10 11 -10 12 n cm -2 sec -1 . It differs in many ways from conventional pool type, namely small critical mass, beryllium reflector and a closed reactor container. The reactor is designed as small and simply as possible, and consistently with safety and good operating practice. Access to the present model is via pneumatic irradiation tubes only, which limits the use of the facility to activation analysis, tracer production and training. (Mori, K.)

  7. Nuclear reactor

    International Nuclear Information System (INIS)

    Rau, P.

    1980-01-01

    The reactor core of nuclear reactors usually is composed of individual elongated fuel elements that may be vertically arranged and through which coolant flows in axial direction, preferably from bottom to top. With their lower end the fuel elements gear in an opening of a lower support grid forming part of the core structure. According to the invention a locking is provided there, part of which is a control element that is movable along the fuel element axis. The corresponding locking element is engaged behind a lateral projection in the opening of the support grid. The invention is particularly suitable for breeder or converter reactors. (orig.) [de

  8. Expansion of genes encoding piRNA-associated argonaute proteins in the pea aphid: diversification of expression profiles in different plastic morphs.

    Directory of Open Access Journals (Sweden)

    Hsiao-Ling Lu

    Full Text Available Piwi-interacting RNAs (piRNAs are known to regulate transposon activity in germ cells of several animal models that propagate sexually. However, the role of piRNAs during asexual reproduction remains almost unknown. Aphids that can alternate sexual and asexual reproduction cycles in response to seasonal changes of photoperiod provide a unique opportunity to study piRNAs and the piRNA pathway in both reproductive modes. Taking advantage of the recently sequenced genome of the pea aphid Acyrthosiphon pisum, we found an unusually large lineage-specific expansion of genes encoding the Piwi sub-clade of Argonaute proteins. In situ hybridisation showed differential expressions between the duplicated piwi copies: while Api-piwi2 and Api-piwi6 are "specialised" in germ cells their most closely related copy, respectively Api-piwi5 and Api-piwi3, are expressed in the somatic cells. The differential expression was also identified in duplicated ago3: Api-ago3a in germ cells and Api-ago3b in somatic cells. Moreover, analyses of expression profiles of the expanded piwi and ago3 genes by semi-quantitative RT-PCR showed that expressions varied according to the reproductive types. These specific expression patterns suggest that expanded aphid piwi and ago3 genes have distinct roles in asexual and sexual reproduction.

  9. A Flexible Domain-Domain Hinge Promotes an Induced-fit Dominant Mechanism for the Loading of Guide-DNA into Argonaute Protein in Thermus thermophilus.

    Science.gov (United States)

    Zhu, Lizhe; Jiang, Hanlun; Sheong, Fu Kit; Cui, Xuefeng; Gao, Xin; Wang, Yanli; Huang, Xuhui

    2016-03-17

    Argonaute proteins (Ago) are core components of the RNA Induced Silencing Complex (RISC) that load and utilize small guide nucleic acids to silence mRNAs or cleave foreign DNAs. Despite the essential role of Ago in gene regulation and defense against virus, the molecular mechanism of guide-strand loading into Ago remains unclear. We explore such a mechanism in the bacterium Thermus thermophilus Ago (TtAgo), via a computational approach combining molecular dynamics, bias-exchange metadynamics, and protein-DNA docking. We show that apo TtAgo adopts multiple closed states that are unable to accommodate guide-DNA. Conformations able to accommodate the guide are beyond the reach of thermal fluctuations from the closed states. These results suggest an induced-fit dominant mechanism for guide-strand loading in TtAgo, drastically different from the two-step mechanism for human Ago 2 (hAgo2) identified in our previous study. Such a difference between TtAgo and hAgo2 is found to mainly originate from the distinct rigidity of their L1-PAZ hinge. Further comparison among known Ago structures from various species indicates that the L1-PAZ hinge may be flexible in general for prokaryotic Ago's but rigid for eukaryotic Ago's.

  10. Markov State Models Reveal a Two-Step Mechanism of miRNA Loading into the Human Argonaute Protein: Selective Binding followed by Structural Re-arrangement

    KAUST Repository

    Jiang, Hanlun

    2015-07-16

    Argonaute (Ago) proteins and microRNAs (miRNAs) are central components in RNA interference, which is a key cellular mechanism for sequence-specific gene silencing. Despite intensive studies, molecular mechanisms of how Ago recognizes miRNA remain largely elusive. In this study, we propose a two-step mechanism for this molecular recognition: selective binding followed by structural re-arrangement. Our model is based on the results of a combination of Markov State Models (MSMs), large-scale protein-RNA docking, and molecular dynamics (MD) simulations. Using MSMs, we identify an open state of apo human Ago-2 in fast equilibrium with partially open and closed states. Conformations in this open state are distinguished by their largely exposed binding grooves that can geometrically accommodate miRNA as indicated in our protein-RNA docking studies. miRNA may then selectively bind to these open conformations. Upon the initial binding, the complex may perform further structural re-arrangement as shown in our MD simulations and eventually reach the stable binary complex structure. Our results provide novel insights in Ago-miRNA recognition mechanisms and our methodology holds great potential to be widely applied in the studies of other important molecular recognition systems.

  11. A Flexible Domain-Domain Hinge Promotes an Induced-fit Dominant Mechanism for the Loading of Guide-DNA into Argonaute Protein in Thermus thermophilus

    KAUST Repository

    Zhu, Lizhe

    2016-02-24

    Argonaute proteins (Ago) are core components of the RNA Induced Silencing Complex (RISC) that load and utilize small guide nucleic acids to silence mRNAs or cleave foreign DNAs. Despite the essential role of Ago in gene regulation and defense against virus, the molecular mechanism of guide-strand loading into Ago remains unclear. We explore such a mechanism in the bacterium Thermus thermophilus Ago (TtAgo), via a computational approach combining molecular dynamics, bias-exchange metadynamics, and protein-DNA docking. We show that apo TtAgo adopts multiple closed states that are unable to accommodate guide-DNA. Conformations able to accommodate the guide are beyond the reach of thermal fluctuations from the closed states. These results suggest an induced-fit dominant mechanism for guide-strand loading in TtAgo, drastically different from the two-step mechanism for human Ago 2 (hAgo2) identified in our previous study. Such a difference between TtAgo and hAgo2 is found to mainly originate from the distinct rigidity of their L1-PAZ hinge. Further comparison among known Ago structures from various species indicates that the L1-PAZ hinge may be flexible in general for prokaryotic Agos but rigid for eukaryotic Agos. © 2016 American Chemical Society.

  12. NUCLEAR REACTOR

    Science.gov (United States)

    Miller, H.I.; Smith, R.C.

    1958-01-21

    This patent relates to nuclear reactors of the type which use a liquid fuel, such as a solution of uranyl sulfate in ordinary water which acts as the moderator. The reactor is comprised of a spherical vessel having a diameter of about 12 inches substantially surrounded by a reflector of beryllium oxide. Conventionnl control rods and safety rods are operated in slots in the reflector outside the vessel to control the operation of the reactor. An additional means for increasing the safety factor of the reactor by raising the ratio of delayed neutrons to prompt neutrons, is provided and consists of a soluble sulfate salt of beryllium dissolved in the liquid fuel in the proper proportion to obtain the result desired.

  13. Reactor Neutrinos

    Directory of Open Access Journals (Sweden)

    Soo-Bong Kim

    2013-01-01

    Full Text Available We review the status and the results of reactor neutrino experiments. Short-baseline experiments have provided the measurement of the reactor neutrino spectrum, and their interest has been recently revived by the discovery of the reactor antineutrino anomaly, a discrepancy between the reactor neutrino flux state of the art prediction and the measurements at baselines shorter than one kilometer. Middle and long-baseline oscillation experiments at Daya Bay, Double Chooz, and RENO provided very recently the most precise determination of the neutrino mixing angle θ13. This paper provides an overview of the upcoming experiments and of the projects under development, including the determination of the neutrino mass hierarchy and the possible use of neutrinos for society, for nonproliferation of nuclear materials, and geophysics.

  14. REACTOR SHIELD

    Science.gov (United States)

    Wigner, E.P.; Ohlinger, L.E.; Young, G.J.; Weinberg, A.M.

    1959-02-17

    Radiation shield construction is described for a nuclear reactor. The shield is comprised of a plurality of steel plates arranged in parallel spaced relationship within a peripheral shell. Reactor coolant inlet tubes extend at right angles through the plates and baffles are arranged between the plates at right angles thereto and extend between the tubes to create a series of zigzag channels between the plates for the circulation of coolant fluid through the shield. The shield may be divided into two main sections; an inner section adjacent the reactor container and an outer section spaced therefrom. Coolant through the first section may be circulated at a faster rate than coolant circulated through the outer section since the area closest to the reactor container is at a higher temperature and is more radioactive. The two sections may have separate cooling systems to prevent the coolant in the outer section from mixing with the more contaminated coolant in the inner section.

  15. NEUTRONIC REACTOR

    Science.gov (United States)

    Anderson, H.L.

    1960-09-20

    A nuclear reactor is described comprising fissionable material dispersed in graphite blocks, helium filling the voids of the blocks and the spaces therebetween, and means other than the helium in thermal conductive contact with the graphite for removing heat.

  16. Chemical Reactors.

    Science.gov (United States)

    Kenney, C. N.

    1980-01-01

    Describes a course, including content, reading list, and presentation on chemical reactors at Cambridge University, England. A brief comparison of chemical engineering education between the United States and England is also given. (JN)

  17. Reactor technology

    International Nuclear Information System (INIS)

    Erdoes, P.

    1977-01-01

    This is one of a series of articles discussing aspects of nuclear engineering ranging from a survey of various reactor types for static and mobile use to mention of atomic thermo-electric batteries of atomic thermo-electric batteries for cardiac pacemakers. Various statistics are presented on power generation in Europe and U.S.A. and economics are discussed in some detail. Molten salt reactors and research machines are also described. (G.M.E.)

  18. Propulsion reactors

    International Nuclear Information System (INIS)

    Anon.

    1999-01-01

    A nuclear reactor equips the recently constructed French aircraft- carrier Charles-De-Gaulle, in a few months the second nuclear submarine (SNLE) of new generation will be operational. In last october the government launched the program Barracuda which consists of 6 submarines (SNA) whose series head will be operational in 2010. The main asset of nuclear propulsion is to allow an almost unlimited autonomy: soft water, air are produced inside the submarine and the maximum time spent underwater is only limited by human capacity to cope with confinement. CEA has 3 missions concerning country defence. First the designing, the fabrication and the maintenance of weapons, secondly the supplying of fissile materials and thirdly the nuclear propulsion. A new generation of propulsion reactors is being studied and a ground installation involving a test reactor equivalent to that on board is being built. This test reactor (RES) will simulate any type of on-board reactors by adjusting temperature, pressure, flowrate and even equipment such as steam generator. This reactor will validate the technological choices for the Barracuda program. (A.C.)

  19. Research reactors - an overview

    International Nuclear Information System (INIS)

    West, C.D.

    1997-01-01

    A broad overview of different types of research and type reactors is provided in this paper. Reactor designs and operating conditions are briefly described for four reactors. The reactor types described include swimming pool reactors, the High Flux Isotope Reactor, the Mark I TRIGA reactor, and the Advanced Neutron Source reactor. Emphasis in the descriptions is placed on safety-related features of the reactors. 7 refs., 7 figs., 2 tabs

  20. Factores relacionados con el acoso escolar (bullying en los adolescentes de Barcelona Factors related to bullying in adolescents in Barcelona (Spain

    Directory of Open Access Journals (Sweden)

    Xavier Garcia Continente

    2010-04-01

    Full Text Available Objetivos: La violencia y el acoso escolar constituyen un problema social y de salud que ha generado una gran alarma en los últimos años. En este estudio se describe el acoso escolar y los factores relacionados en estudiantes de Barcelona. Métodos: Estudio transversal de una muestra representativa de 2.727 estudiantes de 66 centros escolares de secundaria de Barcelona. Se definió «acoso escolar» como haber sido objeto de burla, golpeado o marginado cuatro o más veces, o al menos una vez en cada uno de los ítems, en los últimos 12 meses. Se realizó un análisis de regresión logística bivariado y multivariado para estudiar la relación entre el acoso y diversos factores, incluyendo variables sociodemográficas, actitudes y comportamientos. Resultados: La prevalencia de acoso escolar fue del 18,2%, 10,9% y 4,3% en chicos, y del 14,4%, 8,5% y 4,5% en chicas de 2º y 4º de educación secundaria obligatoria y 2º de bachillerato o ciclos formativos de grado medio, respectivamente. Los factores que se asociaron con un incremento de la probabilidad de padecer acoso fueron el estado de ánimo negativo y la conducta violenta, mientras que tener mayor edad, el consumo de riesgo de alcohol, el consumo de cannabis e ir a bares y discotecas se asociaron negativamente. Conclusiones: Los resultados confirman la relevancia del problema del acoso escolar en nuestro medio, y señalan diversos factores asociados, como el estado de ánimo negativo y varios comportamientos de riesgo, que deberían ser analizados con detalle en estudios longitudinales para diseñar e implementar programas preventivos apropiados.Objectives: Violence and bullying in the school setting are a serious social and health problem that have created great alarm in the last few years. We aimed to describe bullying and factors related to this phenomenon in students in the city of Barcelona. Methods: We performed a cross-sectional study of a representative sample of 2,727 students

  1. Evolución de la mortalidad infantil en la ciudad de Barcelona (1983-1998 Trends in infant mortality in Barcelona [Spain], 1983-1998

    Directory of Open Access Journals (Sweden)

    Emma Albacar

    2004-02-01

    Full Text Available Objetivo: Analizar las tendencias de la mortalidad infantil, teniendo en cuenta sus componentes y las principales causas de defunción entre los años 1983 y 1998 en la ciudad de Barcelona. Métodos: Se han calculado las tasas globales y por sexos de la mortalidad infantil, posneonatal, neonatal, neonatal tardía y neonatal precoz de los residentes de la ciudad de Barcelona entre los años 1983 y 1998, con los datos procedentes de los registros de mortalidad y natalidad. Los datos se han agrupado en períodos de 4 años y se han ajustado los modelos de regresión de Poisson con la finalidad de calcular los riesgos relativos de mortalidad que comparen estos períodos. También se ha calculado la variación porcentual entre las tasas de los períodos definidos. Resultados: En total, durante estos 16 años hubo 1.564 muertes. De éstas, 896 corresponden a niños (57,3% y las 668 restantes a niñas (42,7%. Las tasas de mortalidad infantil oscilan entre 10,5 por 1.000 nacidos vivos en el año 1986 y 3,4 10 años después, en el año 1996. Entre los años 1983 y 1988 se observa un estancamiento de la mortalidad infantil, y a partir del año 1989 se nota una disminución en las tasas de mortalidad infantil. La tasa de mortalidad neonatal, y sobre todo la neonatal precoz, experimentan un descenso más pronunciado que la mortalidad posneonatal. Las causas de defunción más frecuentes son las debidas a defectos congénitos (47,4% seguidas por las causas perinatales (32,1%. Conclusiones: Tras analizar la tendencia de la mortalidad infantil y haber observado la de años anteriores, se concluye que las tasas de mortalidad infantil han disminuido durante el período estudiado, aunque no con la misma intensidad que en décadas anteriores.Objective: To analyze trends in infant mortality, taking into account its main components and the principal causes of death between 1983 and 1998 in the city of Barcelona (Spain. Methods: We calculated overall mortality rates

  2. Acidentes de trabalho em Barcelona (Espanha, no período de 1992-1993 Work accidents in Barcelona (Spain, from 1992 to 1993

    Directory of Open Access Journals (Sweden)

    Rosana F. Sampaio

    1998-08-01

    Full Text Available INTRODUÇÃO: As estatísticas dos acidentes de trabalho, como qualquer outro sistema de notificação, devem servir de base para determinar prioridades e decidir quais medidas preventivas devem ser adotadas. Neste contexto, o objetivo do estudo é aprofundar a análise dos acidentes de trabalho através da utilização de técnicas estatísticas descritivas que permitam estabelecer a relação entre o número de acidentes de trabalho ocorridos em Barcelona (Espanha e as variáveis tipo de acidente, setor econômico, tamanho da empresa e tipo de contrato. MÉTODO: Como fonte de dados foi utilizado o sistema de notificação de acidentes graves e mortais ocorridos na cidade de Barcelona (Espanha, entre 1992 e 1993. Foram examinados 848 registros de acidentes de trabalho em trabalhadores do sexo masculino e a partir desses dados efetuou-se uma análise mediante modelos log-lineares. RESULTADOS E CONCLUSÕES: Os resultados evidenciam que os acidentes traumáticos e o setor de construção têm uma associação positiva, verificada, da mesma forma, entre os acidentes de trânsito e o setor de serviços. Os acidentes traumáticos e de trânsito apresentaram uma associação com as pequenas empresas e os acidentes não traumáticos demonstraram associar-se com as grandes empresas. Verificou-se, ainda, associação entre os trabalhadores temporais e o setor da construção frente aos trabalhadores com contrato fixo, em que se constatou uma associação com os setores de indústria e de serviços. Foi verificada associação positiva entre os acidentes ocorridos com os trabalhadores temporais e as pequenas e médias empresas.INTRODUCTION: The statistics related to labor accidents as with any other notification system ought to be the basis for programs and policies with a view to the adoption of preventive measures. In order to establish preventive norms, however, the health system needs data from researchers focussing on the dynamics of and the pitfalls

  3. Trastornos menores de salud en una muestra de estudiantes de la Universidad de Barcelona Minor health disorders in a sample of students of the University of Barcelona

    Directory of Open Access Journals (Sweden)

    MT Icart Isern

    2006-09-01

    Full Text Available Introducción: conocer la prevalencia de algunos trastornos menores de salud (TMS en una muestra de estudiantes de la Universidad de Barcelona (2004-05. Material y métodos: El estudio se realizó en las facultades de Ciencias Económicas, Farmacia, Medicina, Psicología y Químicas y Escuela de Enfermería de la Universidad de Barcelona. Se empleó un diseño observacional, descriptivo y transversal mediante un cuestionario mixto administrada a 600 estudiantes durante el mes de diciembre de 2004. Las variables estudiadas corresponden a los siguientes TMS: insomnio, estreñimiento, cefalea, dolor osteomuscular, tics nerviosos, onicofagia y tricotilomania. Resultados: El sexo femenino representa el 64% de la muestra; la media de edad de los encuestados es de 22,7 (DE: 3,27; IC 95%: 22,43-22,96. Las mujeres acumulan el 67,79% de los 1.245 TMS identificados. Por sexo, se observan diferencias estadísticamente significativas en las prevalencias de cefalea, dolor osteomuscular y tricotilomania que afectan en mayor medida al sexo femenino. La onicofagia (264; 21,20%; IC 95%: 18-24,4 es el más extendido de los TMS, seguido de la cefalea (233; 18,72%; IC 95%: 15,6-21,84. los estudiantes de Psicología presentan el mayor número, seguidos de los de Ciencias Económicas; los que presentan un menor número son los de Farmacia y Químicas. Conclusiones: El sexo femenino presenta la mayor prevalencia de TMS. La onicofagia y la cefalea son los principales TMS identificados en la muestra. Los estudiantes de Psicología acumulan el mayor número de TMS, siendo los que presentan más cefalea, dolor osteomuscular y tricotilomania.Background: To determine the prevalence of certain minor health disorders (MHD in a sample of students from the University of Barcelona (2004-05. Methods: The study was carried out in the faculties of Economic Sciences, Pharmacy, Medicine, Psychology and Chemistry, and in the School of Nursing, all of the University of Barcelona. An

  4. Capitalidad autonómica y proceso de terciarización: el caso de Barcelona

    Directory of Open Access Journals (Sweden)

    Alberich González, Joan

    2014-06-01

    Full Text Available Barcelona has been since many years ago the functional centre of a vast territory, beyond the strict scope of Catalonia. From this fact, the aim of the study is to determine whether the regional capital of Barcelona and the general process of tertiarisation, two phenomena almost contemporary, have reinforced its centrality and if they have done with greater intensity than in other cities from the Catalan urban system. In agreement with this, we have divided this work into two sections. The first one analyzes the evolution of jobs of Barcelona and the Catalan cities of over 50,000 inhabitants from the late 1980s and the first decade of the 21st century and their distribution by activity branches. The second part, as an example of this tertiarisation process, we analyze the functional change and valorisation of a Barcelona’s old obsolete industrial area for its renewal into an advanced tertiary sector use, known as district 22@.Barcelona es desde hace muchos años el centro funcional de un extenso territorio, que va más allá del ámbito estricto de Cataluña. A partir de esta realidad, el objetivo del trabajo es conocer si la capitalidad autonómica de Barcelona y el proceso general de terciarización, dos fenómenos casi contemporáneos, han reforzado su centralidad y si lo han hecho con mayor intensidad que en otras ciudades del sistema urbano catalán. De acuerdo con este planteamiento, hemos dividido este trabajo en dos apartados. El primero analiza la evolución de los puestos de trabajo y su distribución por ramas de actividad de Barcelona y las ciudades catalanas de más de 50.000 habitantes entre finales de la década de 1980 y la primera década del siglo XXI . La segunda parte, como un ejemplo de este proceso de terciarización, analiza el cambio funcional y la puesta en valor de un antiguo espacio industrial barcelonés en desuso, para su reconversión en uso del terciario avanzado, el llamado distrito 22@. [fr] Barcelone a

  5. Public Space in Barcelona (1992-2017) - Evolution and Case Studies

    Science.gov (United States)

    Sanfeliu Arboix, Ignacio; Martín, Estefanía

    2017-10-01

    The construction of the public space has become in the last decades something so important and fundamental in the architecture of the cities, that requires a specific discipline and a concrete study that evaluates the characteristics and actions on it. Not already from an urbanistic perspective but from its own design and constructive perspective, with its character as a place for everyone and for everything, must gather a series of elements that are unique to this space. Barcelona is one of the densest cities in the world that, since the end of the s. XX until our days, tries to solve the public space with a design of quality and optimum. The shortage of public space, which also hosts more than eight million tourists each year, makes it necessary to propose a type of meticulous intervention in order to accommodate all types of users and activities. From the first Universal Exhibition of 1888 through 1929 to the 1992 Olympics as the most important stimulus for this renewal of urban space, Barcelona has been rethinking and evolving in the modus operandi in terms of its urban space. From our professional experience as architects both in the municipal, private and university spheres, we believe that it is our responsibility to confer the public space, that is to say, the design of the urban infrastructure with the attributes necessary to consolidate it in a space Suitable for all without exception and as a place of expression of citizenship. Through the projects of public space developed in our office we will analyze this change of procedure in the construction of squares, parks and other spaces in the city of Barcelona.

  6. Trihalomethane concentrations in tap water as determinant of bottled water use in the city of Barcelona.

    Science.gov (United States)

    Font-Ribera, Laia; Cotta, Jordi Colomer; Gómez-Gutiérrez, Anna; Villanueva, Cristina M

    2017-08-01

    Bottled water consumption is increasing worldwide, despite its huge economic and environmental cost. We aim to describe personal and tap water quality determinants of bottled water use in the city of Barcelona. This cross-sectional study used data from the Health Survey of Barcelona in 2006 (N=5417 adults). The use of bottled water to drink and to cook was evaluated in relation to age, gender, educational level, district and levels of trihalomethanes (THMs), free chlorine, conductivity, chloride, sodium, pH, nitrate and aluminium in municipal tap water using Robust Poisson Regression. The prevalence of bottled water use to drink and cook was 53.9% and 6.7%, respectively. Chemical parameters in water had a large variability (interquartile range of THMs concentrations: 83.2-200.8μg/L) and were correlated between them, except aluminium. Drinking bottled water increased with educational level, while cooking with bottled water was higher among men than among women and decreased with age. After adjusting by these personal determinants, a dose-response relationship was found between concentrations of all chemicals except aluminium in tap water and bottled water use. The highest association was found for THMs, with a Prevalence Ratio of 2.00 (95%CI=1.86, 2.15) for drinking bottled water and 2.80 (95%CI=1.72, 4.58) for cooking with bottled water, among those with >150μg/L vs. tap water. More than half of Barcelona residents regularly drank bottled water, and the main determinant was the chemical composition of tap water, particularly THM level. Copyright © 2017. Published by Elsevier B.V.

  7. Reinterpretando la ciudad: la cultura skater y las calles de Barcelona

    Directory of Open Access Journals (Sweden)

    Xavi Camino

    2008-03-01

    Full Text Available En este artículo analizamos el desarrollo de la práctica del skateboarding por las calles de Barcelona como un ejemplo de apropiación informal del espacio urbano que deja ver claramente las contradicciones que se generan en la producción del espacio de la ciudad. Para ello, partiremos de los datos extraídos de un trabajo de campo realizado entre los años 2003 y 2007, mediante métodos tradicionales de la antropología como son la observación participante y las entrevistas en profundidad. Después de explicar la situación actual y la perspectiva teórica que hemos adoptado, nos adentramos en el estudio cultural de esta experiencia urbana, desde sus orígenes hasta la actualidad. Seguidamente describimos cómo se desarrolla el fenómeno cultural en Barcelona, atendiendo la dialéctica generada entre el ayuntamiento, los skaters y otros usuarios de la ciudad. A continuación, siguiendo cronológicamente los procesos, damos cuenta de cómo la proliferación de un diseño del espacio urbano que internacionaliza la imagen de la ciudad de Barcelona, a finales de los 90, favorece también su reconocimiento internacional como un lugar idóneo para la práctica del skateboarding. Finalmente, valoraremos el papel que juegan los skateparks –las instalaciones adecuadas– ante el desarrollo del skateboarding por las calles.

  8. Knowledge, attitude and perceptions of breast cancer screening among native and immigrant women in Barcelona, Spain.

    Science.gov (United States)

    Pons-Vigués, Mariona; Puigpinós-Riera, Rosa; Serral, Gemma; Pasarín, M Isabel; Rodríguez, Dolors; Pérez, Glòria; Benet, Josep; Casamitjana, Montserrat; Borrell, Carme

    2012-06-01

    Inequalities between immigrant and native populations in terms of access and use of health services have been described. The objective is to compare knowledge, attitudes, vulnerabilities, benefits and barriers related to breast cancer (BC) and screening mammography among women from different countries resident in Barcelona. A cross-sectional survey carried out in Barcelona in 2009. The study population consisted of female residents in Barcelona between 45 and 69 years of age; participants were Spanish nationals or immigrants from low-income countries. 960 participants were asked 72 questions, mainly with Likert responses. The dependent variables were five quantitative scales: (1) knowledge of BC and early detection, (2) attitude towards health and BC, (3) vulnerability to BC, (4) barriers to mammography, (5) benefits of mammography. The independent variables were country of origin, social class, setting, cohabitation, age, mammography use, length of residence and fluency of the language. Analyses compared scale scores stratified by the independent variables. Multivariable linear regression models were fitted to determine the relationship between the scales and the independent variables. We observed inequalities according to country of origin on all scales after adjustment for independent variables. Chinese women presented the greatest differences with respect to native women, followed by Maghrebi and Filipino women. Inequalities exist on the vulnerability and barriers scales according to social class and urban/rural setting, and on the attitude scale according to social class. Country of origin, social class and urban/rural setting are key contributors to inequality in these scales. Copyright © 2011 John Wiley & Sons, Ltd.

  9. Nuclear reactors

    International Nuclear Information System (INIS)

    Prescott, R.F.; George, B.V.; Baglin, C.J.

    1978-01-01

    Reference is made to thermal insulation on the inner surfaces of containment vessels of fluid cooled nuclear reactors and particularly in situations where the thermal insulation must also serve a structural function and transmit substantial load forces to the surface which it covers. An arrangement is described that meets this requirement and also provides for core support means that favourably influences the flow of hot coolant from the lower end of the core into a plenum space in the hearth of the reactor. The arrangement comprises a course of thermally insulating bricks arranged as a mosaic covering a wall of the reactor and a course of thermally insulating tiles arranged as a mosaic covering the course of bricks. Full constructional details are given. (UK)

  10. Reactor utilization

    International Nuclear Information System (INIS)

    Zecevic, V.

    1963-01-01

    In 1962, the RA reactor was operated almost three times more than in 1961, producing total of 25 555 MWh. Diagram containing comparative data about reactor operation for 1960, 1961, and 1962, percent of fuel used and U-235 burnup shows increase in reactor operation. Number of samples irradiated was 659, number of experiments done was 16. mean powered level was 5.93 MW. Fuel was added into the core twice during the reporting year. In fact the core was increased from 56 to 68 fuel channels and later to 84 fuel channels. Fuel was added to the core when the reactivity worth decreased to the minimum operation level due to burnup. In addition to this 5 central fuel channels were exchanged with fresh fuel in february for the purpose of irradiation in the VISA-2 channel

  11. Bioconversion reactor

    Science.gov (United States)

    McCarty, Perry L.; Bachmann, Andre

    1992-01-01

    A bioconversion reactor for the anaerobic fermentation of organic material. The bioconversion reactor comprises a shell enclosing a predetermined volume, an inlet port through which a liquid stream containing organic materials enters the shell, and an outlet port through which the stream exits the shell. A series of vertical and spaced-apart baffles are positioned within the shell to force the stream to flow under and over them as it passes from the inlet to the outlet port. The baffles present a barrier to the microorganisms within the shell causing them to rise and fall within the reactor but to move horizontally at a very slow rate. Treatment detention times of one day or less are possible.

  12. Thermonuclear reactor

    International Nuclear Information System (INIS)

    Araki, Takao; Saito, Yasushi.

    1987-01-01

    Purpose: To reduce the seismic wave responsivity of an exhaust duct shields thereby preventing the release of tritium in an evacuating device due to failures upon earthquakes. Constitution: The ends on the cutting side of upper outer exhaust duct shields of a thermonuclear reactor are connected with a plurality of support beams. In a case where seismic vibrations are exerted to such a thermonuclear reactor, since the ends on the cutting side are coupled with the support beams, vibrations of the upper outer exhaust duct shields are greatly restricted. Thus, since there is no more such a possibility, for example, that an exhaust duct connected to the upper portion of a reactor main body is greatly distorted due to the seismic response of the upper outside exhaust duct shields to result in the failure of the connection portion with a vacuum pump, the release of tritium due to failure of the evacuating device can be prevented. (Yoshino, Y.)

  13. Seguimiento del control de calidad de una promoción de 60 viviendas en Barcelona

    OpenAIRE

    Díaz Fuentes, Natalia

    2014-01-01

    Este Proyecto Final de Grado (PFG) consiste en el seguimiento del control de calidad de una obra actual en construcción, desde su fase inicial hasta su fase de estructura, de una promoción de 60 viviendas situada en Barcelona ejecutada por la empresa contratista Ferrovial Agroman, S.A. Este seguimiento del control de calidad se basa en el Sistema Integrado de Calidad (SIC) de la propia empresa constructora, centrado en: - Preparación del Plan de Aseguram...

  14. Les motivacions dels turistes LGBT en l’elecció de la ciutat de Barcelona

    OpenAIRE

    Prat Forga, Josep Maria

    2015-01-01

    El turisme LGBT s’està consolidant com una important activitat dins del sector turístic. La ciutat de Barcelona no és aliena a aquesta tendència. No obstant això, la satisfacció obtinguda amb aquesta experiència depèn de diferents variables segons la motivació principal per realitzar aquest viatge. En aquest article s’analitzen aquests aspectes comparant els resultats de dues enquestes. La primera, a una mostra dels assistents al Festival Circuit, i la segona, a un grup de turistes LGBT alien...

  15. The fascistization of the italian schools abroad. The case of Barcelona (1922-1931

    Directory of Open Access Journals (Sweden)

    Rubén DOMÍNGUEZ MÉNDEZ

    2015-04-01

    Full Text Available The Italian schools abroad suffered their progressive fascistization from 1922. This opened a new channel of propaganda of totalitarian ideology within vital centers for the training of youth. This article makes a case study about these processes abroad, which haven’t yet received enough attention by the historiography, focused on the city of Barcelona. We’ve used archivist documents to know the steps taken in the following aspects: situate the schools in the fascist orbit, exercise an iron surveillance of teachers, establish a new educational program and introduce the students in the fascist youth organization.

  16. Barcelona, emporio mediterráneo, atlántico y asiático (?), sucesivamente

    OpenAIRE

    Nadal, Jordi, 1929-

    2015-01-01

    La historia económica de Barcelona presenta dos grandes fases de avance. Una primera vinculada a la Revolución comercial bajomedieval y al comercio mediterráneo, y la segunda ligada a la Revolución Industrial y al comercio atlántico. En los últimos años y siguiendo su tradición, la ciudad se está convirtiendo un emporio asiático gracias a la globalización.

  17. Alfonso El Benigno y el Santuario de Montserrat (Barcelona) en el siglo XIV

    OpenAIRE

    Mutgé Vives, Josefina

    2006-01-01

    Este trabajo forma parte del Proyecto de Investigación titulado "Entre la Península Ibérica y el Mediterráneo, Interacciones políticas, económicas y culturales de la Corona de Aragón en la Baja Edad Media (Ref. HUM2004-00916) dirigido por la Dra. Roser Salicrú; y del Proyecto "El 'Llibre del Consell' del municipio de Barcelona. Siglo XIV" (Ref. BHA2002-00329), dirigido por Josefina Mutgé Vives, financiados por el Ministerio de Educación y Ciencia y por Fondos FEDER

  18. PREVENCIÓN INDICADA DEL CONSUMO PROBLEMÁTICO DE DROGAS EN ADOLESCENTES DE BARCELONA

    OpenAIRE

    Anna M Guitart; Montse Bartroli; Joan R Villalbí; Elvira Guilañá; Yolanda Castellano; Albert Espelt; M Teresa Brugal

    2012-01-01

    Fundamentos: El Servicio de Orientación sobre Drogas (SOD) de Barcelona ofrece un programa de Información y Orientación (PIO) para adolescentes y un Programa de Medidas Alternativas (PMA) a menores sancionados por consumo/tenencia de drogas en la vía pública. El objetivo de este trabajo es describirlos y comparar los perfiles de los usuarios en cada uno de ellos. Métodos: Estudio transversal descriptivo de 1.010 personas atendidas en ambos programas durante el período 2008-2010, con cribado d...

  19. Epidemiology of imported malaria among children and young adults in Barcelona (1990-2008

    Directory of Open Access Journals (Sweden)

    Garcia-Villarrubia Mireia

    2011-11-01

    Full Text Available Abstract Background Increasing international travel and migration is producing changes in trends in infectious diseases, especially in children from many European cities. The objective of this study was to describe the epidemiology and determine the trends of imported malaria in patients under 20 years old in the city of Barcelona, Spain, during an 18-year period. Methods The study included malaria cases that were laboratory confirmed and reported to the malaria register at the Public Health Agency of Barcelona from 1990 to 2008, residing in Barcelona and less than 20 years old. Patients were classified as natives (born in Spain or immigrants. Differences in the distribution of demographic, clinical characteristics, and incidence per 100,000 person-year evolution were analysed. Natives and immigrants were compared by logistic regression by calculating the odds ratio (OR with a 95% confidence interval (CI and Chi-square for a linear trend (p Results Of the total 174 cases, 143 (82.1% were immigrants, 100 (57.5% were female, 121 (69.5% Plasmodium falciparum, and 108 (62.1% were visiting friends and relatives (VFR as the reason for travel. Among the immigrants, 99 (67.8% were from Equatorial Guinea. Immigrant cases more frequently travelled to Africa than natives (p = 0.02. The factors associated with imported malaria among immigrant residents was travelling for VFR (OR: 6.2 CI 1.9-20.2 and age 15-19 (OR: 3.7 CI 1-13.3. The incidence increased from 1990 to 1999 (p Conclusions The majority of cases of malaria in population less than 20 years in Barcelona were immigrants, travelling to Africa for VFR and Plasmodium falciparum was most frequently detected. The trend analysis of the entire study period did not show a statistically significant decline. It is recommended to be aware of malaria, especially among children of immigrants who travel to their parent's home country for VFR. Better access to pre travel advice should be provided.

  20. Smart Tourism y Patrimonio Literario: Los casos de Edimburgo y Barcelona

    Directory of Open Access Journals (Sweden)

    Jordi Arcos Pumarola

    2016-07-01

    Full Text Available The aim of this paper is to evaluate the opportunities that arise from the creation of products based on mobile technology that help to interpret the literary heritage in tourist destinations. In first place and as state of the art, a research about mobile applications in Edinburgh, which is a consolidated touristic literary destination, is carried out. The conclusions of this research, together with the principal ideas of the Educating Cities movement, let the authors value, from a socioeducative and touristic perspective, the viability and the opportunities that come from the creation of these products in the context of Barcelona.

  1. Nuevos espacios terciarios de Barcelona: adaptaciones a una economía globalizada

    Directory of Open Access Journals (Sweden)

    Rosa Tello Robira

    2017-11-01

    Full Text Available This paper analyses the restructuring of the Barcelona urban space to the tertiarization process. The importance of this process is assessed through some indicators, such as demographic and occupational ones, household incomes and housing prices. The ideology and the urban politics that have been developed during the last twenty years have also been analysed, stressing the strategies of production of the new urban spaces called Àrees de Nova Centralitat. Lastly, the socio-spatial effects of the tertiary process are assessed through the analysis of the offices market and the location of new office buildings.

  2. Consciència de la higiène urbana en una Barcelona ofegada

    OpenAIRE

    el Haddad, Marie

    2017-01-01

    El Casc Antic de Barcelona va patir de sobrepoblació, congestió i diversos brots epidèmics fets que van augmentar la vigilància i preocupació per la higiene urbana. Un dels primers intents va començar quan Carles III i Carles IV van emetre reials decrets relatius a l'exhumació dels cementiris. El primer va prohibir de l'enterrament al costat de esglésies i hospitals i va imposar la conversió dels existents en places públiques, i el segon va permetre la construcció de cementiris extramurs llun...

  3. Religion, Migration and Gender Strategies: Brazilian (Catholic and Evangelical Missionaries in Barcelona

    Directory of Open Access Journals (Sweden)

    Marcos de Araújo Silva

    2013-04-01

    Full Text Available This article reflects on gender strategies developed by Brazilian Pentecostalmissionaries linked to the Catholic Charismatic Renewal and the evangelicalUniversal Church of the Kingdom of God/United Family, in the city of Barcelona,Spain. From a comparative study of the daily life of the missionaries, thepaper discusses how ‘feminized’ and ‘manly’ character, respectively, defineimportant boundaries between Catholic charismatic and Evangelical groups.The ethnographic data demonstrate how certain religious particularitiesof immigrants can act as a source of social differentiation that highlightsopportunities and specific doctrinal strategies for women and men, in thecontext of diaspora.

  4. Valuation of travel time savings for intercity travel: The Madrid-Barcelona corridor

    DEFF Research Database (Denmark)

    Roman, Concepcion; Carlos Martin, Juan; Espino, Raquel

    2014-01-01

    We derive values of travel time savings (VOT) for the Madrid-Barcelona corridor, linking the two largest cities in Spain, based on the estimation of discrete choice models among the main public transport services in the corridor: air transport, high speed rail (HSR) and bus. The new HSR alternative...... to provide useful information to quantify users' benefits during the lifespan of a given project. We found, as expected, that HSR and air transport users exhibit substantially higher values for saving travel time than bus travellers. Also as expected, savings of waiting time are more valued than savings...

  5. Innovar en la gestión de servicios de salud pública: la experiencia de la Agencia de Salud Pública de Barcelona Innovating the service management of public health: the experience of the Barcelona Public Health Agency (Spain

    Directory of Open Access Journals (Sweden)

    Joan Guix

    2008-06-01

    Full Text Available Se describe la evolución de la prestación de servicios de salud pública en la ciudad de Barcelona hasta la creación de la Agència de Salut Pública de Barcelona. La Agencia es un ente consorcial del Ayuntamiento de Barcelona y la Generalitat de Catalunya, como único gestor de las competencias locales y autonómicas en salud pública para la ciudad. Se analiza la lógica de su construcción, su definición de misión, visión y valores, estrategia y catálogo de servicios, así como el rol de la dirección en el conjunto del proceso. Se detallan aspectos de los planes de comunicación y calidad, la estructuración por procesos, y su política de alianzas en los terrenos de docencia e investigación en salud pública, para acabar enumerando los principales retos de futuro que para esta organización se presentan.We describe the evolution of the organization of public health services in the city of Barcelona (Catalonia, Spain until the creation of the Barcelona Public Health Agency. This Agency is a consortium created by the Barcelona City Council and the Government of Catalonia as the sole entity responsible for regional and local public health services in the city. The underlying logic for the Agency’s design, as well as its mission, vision and value statements, strategy, services’ portfolio, and the role of leadership in the process, are analyzed. Aspects related to the Agency’s quality and communication plans, as well as the design of its processes, and its policy in terms of alliances for research and training in public health, are discussed. Finally, the main challenges for the future are described.

  6. Distribution of polycyclic aromatic hydrocarbons (PAHs) and tributyltin (TBT) in Barcelona harbour sediments and their impact on benthic communities

    International Nuclear Information System (INIS)

    Martinez-Llado, Xavier; Gibert, Oriol; Marti, Vicens; Diez, Sergi; Romo, Javier; Bayona, Josep Maria; Pablo, Joan de

    2007-01-01

    Sediments have long been recognised as a sink for many contaminants like polycyclic aromatic hydrocarbons (PAHs) and tributyltin (TBT), which by virtue of their nature can strongly adsorb onto sediments affecting the benthic community inhabiting them. Using geographical information systems, this study reports and combines the results of several already existing studies along Barcelona harbour in order to assess the potential ecological impacts of these contaminants on the benthos of the harbour ecosystem. Chemical analysis indicated low to moderate contents of PAHs and high contents of TBT in sediments in Barcelona harbour. Comparison against existing sediment quality guidelines (SQGs) indicated that acutely toxic effects would not be expected for PAHs but for TBT, which represents a serious environmental threat for the benthic community. Benthos surveys revealed a deterioration of the benthic community throughout the harbour, especially in the inner port. - A possible correlation exists between TBT concentration in sediments and ecological effects on benthos in Barcelona harbour

  7. The 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thaliana[W][OA

    Science.gov (United States)

    Wang, Xian-Bing; Jovel, Juan; Udomporn, Petchthai; Wang, Ying; Wu, Qingfa; Li, Wan-Xiang; Gasciolli, Virginie; Vaucheret, Herve; Ding, Shou-Wei

    2011-01-01

    Arabidopsis thaliana defense against distinct positive-strand RNA viruses requires production of virus-derived secondary small interfering RNAs (siRNAs) by multiple RNA-dependent RNA polymerases. However, little is known about the biogenesis pathway and effector mechanism of viral secondary siRNAs. Here, we describe a mutant of Cucumber mosaic virus (CMV-Δ2b) that is silenced predominantly by the RNA-DEPENDENT RNA POLYMERASE6 (RDR6)-dependent viral secondary siRNA pathway. We show that production of the viral secondary siRNAs targeting CMV-Δ2b requires SUPPRESSOR OF GENE SILENCING3 and DICER-LIKE4 (DCL4) in addition to RDR6. Examination of 25 single, double, and triple mutants impaired in nine ARGONAUTE (AGO) genes combined with coimmunoprecipitation and deep sequencing identifies an essential function for AGO1 and AGO2 in defense against CMV-Δ2b, which act downstream the biogenesis of viral secondary siRNAs in a nonredundant and cooperative manner. Our findings also illustrate that dicing of the viral RNA precursors of primary and secondary siRNA is insufficient to confer virus resistance. Notably, although DCL2 is able to produce abundant viral secondary siRNAs in the absence of DCL4, the resultant 22-nucleotide viral siRNAs alone do not guide efficient silencing of CMV-Δ2b. Possible mechanisms for the observed qualitative difference in RNA silencing between 21- and 22-nucleotide secondary siRNAs are discussed. PMID:21467580

  8. Modern design and safety analysis of the University of Florida Training Reactor

    International Nuclear Information System (INIS)

    Jordan, K.A.; Springfels, D.; Schubring, D.

    2015-01-01

    Highlights: • A new safety analysis of the University of Florida Training Reactor is presented. • This analysis uses modern codes and replaces the NRC approved analysis from 1982. • Reduction in engineering margin confirms that the UFTR is a negligible risk reactor. • Safety systems are not required to ensure that safety limits are not breached. • Negligible risk reactors are ideal for testing digital I&C equipment. - Abstract: A comprehensive series of neutronics and thermal hydraulics analyses were conducted to demonstrate the University of Florida Training Reactor (UFTR), an ARGONAUT type research reactor, as a negligible risk reactor that does not require safety-related systems or components to prevent breach of a safety limit. These analyses show that there is no credible UFTR accident that would result in major fuel damage or risk to public health and safety. The analysis was based on two limiting scenarios, whose extremity bound all other accidents of consequence: (1) the large step insertion of positive reactivity and (2) the release of fission products due to mechanical damage to a spent fuel plate. The maximum step insertion of positive reactivity was modeled using PARET/ANL software and shows a maximum peak fuel temperature of 283.2 °C, which is significantly below the failure limit of 530 °C. The exposure to the staff and general public was calculated for the worst-case fission product release scenario using the ORIGEN-S and COMPLY codes and was shown to be 6.5% of the annual limit. Impacts on reactor operations and an Instrumentation & Control System (I&C) upgrade are discussed

  9. La restauración de la iglesia de Sant Quirze de Pedret (Barcelona, España

    Directory of Open Access Journals (Sweden)

    González Moreno-Navarro, Antoni

    1996-10-01

    Full Text Available Sant Quirze de Pedret is a small church built on late first millennium of our era. It belongs to the Town Council of Berga (province of Barcelona. Its Romanesque and pre- Romanesque paintings, found in 1922 and 1937 and kept in Barcelona and Solsona, enjoy international recognition. However, the first restoration carried out by the province county council of Barcelona (1959-1964 evidenced the successive phases of construction, and the evolution of its masonry is often subject to polemics. Twenty five years later a new restoration was needed. To complete the reconstruction initiated in 1959 and after thorough historical studies, mural paintings (originals and reproductions are once again decorating its walls.

    Sant Quirze de Pedret es una pequeña iglesia de finales del primer milenio propiedad del ayuntamiento de Berga (provincia de Barcelona. Es conocida internacional mente por las pinturas románicas y prerrománicas halladas en 1922 y 1937, conservadas en Barcelona y Sobona. La evolución de su fábrica ha sido, a menudo, origen de polémica. La primera restauración realizada por la Diputación de Barcelona (1959-1964, sin embargo, evidenció las sucesivas fases de construcción. Transcurridos 25 años fue necesaria una nueva restauración, también a cargo de la Diputación. Se completaron los estudios históricos y la reconstrucción formal iniciada en 1959 y las pinturas murales (originales o reproducidas han vuelto a decorar los muros.

  10. [Ressenya del llibre La Vocació de modernitat de Barcelona. Auge i declivi d'una imatge urbana, de Joan Ramon Resina

    OpenAIRE

    Pla, Xavier

    2008-01-01

    Ressenya de llibre 'La vocació de modernitat de Barcelona. Auge i declivi d'una imatge urbana', de Joan Ramon Resina, publicat al 2008. Es tracta d'un assaig sobre Barcelona i la seva representació, sobre la ciutat i el seu relat

  11. Nuclear reactor

    International Nuclear Information System (INIS)

    Gilroy, J.E.

    1980-01-01

    An improved cover structure for liquid metal cooled fast breeder type reactors is described which it is claimed reduces the temperature differential across the intermediate grid plate of the core cover structure and thereby reduces its subjection to thermal stresses. (UK)

  12. Neutronic reactor

    International Nuclear Information System (INIS)

    Wende, C.W.J.

    1976-01-01

    The method of operating a water-cooled neutronic reactor having a graphite moderator is described which comprises flowing a gaseous mixture of carbon dioxide and helium, in which the helium comprises 40--60 volume percent of the mixture, in contact with the graphite moderator. 2 claims, 4 figures

  13. Neutronic reactor

    International Nuclear Information System (INIS)

    Wende, C.W.J.

    1976-01-01

    A safety rod for a nuclear reactor has an inner end portion having a gamma absorption coefficient and neutron capture cross section approximately equal to those of the adjacent shield, a central portion containing materials of high neutron capture cross section and an outer end portion having a gamma absorption coefficient at least equal to that of the adjacent shield

  14. Reactor licensing

    International Nuclear Information System (INIS)

    Harvie, J.D.

    2002-01-01

    This presentation discusses reactor licensing and includes the legislative basis for licensing, other relevant legislation , the purpose of the Nuclear Safety and Control Act, important regulations, regulatory document, policies, and standards. It also discusses the role of the CNSC, its mandate and safety philosophy

  15. Neutronic reactor

    International Nuclear Information System (INIS)

    Carleton, J.T.

    1977-01-01

    A graphite-moderated nuclear reactor includes channels between blocks of graphite and also includes spacer blocks between adjacent channeled blocks with an axis of extension normal to that of the axis of elongation of the channeled blocks to minimize changes in the physical properties of the graphite as a result of prolonged neutron bombardment. 3 claims, 6 figures

  16. Replacing car trips by increasing bike and public transport in the greater Barcelona metropolitan area: a health impact assessment study.

    Science.gov (United States)

    Rojas-Rueda, D; de Nazelle, A; Teixidó, O; Nieuwenhuijsen, M J

    2012-11-15

    Estimate the health risks and benefits of mode shifts from car to cycling and public transport in the metropolitan area of Barcelona, Spain. We conducted a health impact assessment (HIA), creating 8 different scenarios on the replacement of short and long car trips, by public transport or/and bike. The primary outcome measure was all-cause mortality and change in life expectancy related to two different assessments: A) the exposure of travellers to physical activity, air pollution to particulate matter car trips, starting and ending in Barcelona City, to cycling (n=141,690) would be for the travellers who shift modes 1.15 additional deaths from air pollution, 0.17 additional deaths from road traffic fatality and 67.46 deaths avoided from physical activity resulting in a total of 66.12 deaths avoided. Fewer deaths would be avoided annually if half of the replaced trips were shifted to public transport (43.76 deaths). The annual health impact in the Barcelona City general population (n=1,630,494) of the 40% reduction in car trips would be 10.03 deaths avoided due to the reduction of 0.64% in exposure to PM2.5. The deaths (including travellers and general population) avoided in Barcelona City therefore would be 76.15 annually. Further health benefits would be obtained with a shift of 40% of the car trips from the Greater Barcelona Metropolitan which either start or end in Barcelona City to public transport (40.15 deaths avoided) or public transport and cycling (98.50 deaths avoided).The carbon dioxide reduction for shifting from car to other modes of transport (bike and public transport) in Barcelona metropolitan area was estimated to be 203,251t/CO₂ emissions per year. Interventions to reduce car use and increase cycling and the use of public transport in metropolitan areas, like Barcelona, can produce health benefits for travellers and for the general population of the city. Also these interventions help to reduce green house gas emissions. Copyright © 2012

  17. Proyecto ejecutivo de las instalaciones de protección contra incendios de un hotel de apartamentos situado en Barcelona

    OpenAIRE

    Perales Mundó, Martí

    2012-01-01

    El presente Proyecto de Final de Carrera se centra en el estudio de las medidas de protección contra incendios de un edificio destinado a hotel de apartamentos en Barcelona. Para ello se han aplicado las pautas establecidas en el Documento Básico SI Seguridad en caso de incendio del Código Técnico de la Edificación además de otras normativas de aplicación, como la Ordenanza Reguladora de las Condiciones de Protección Contra Incendios de Barcelona, de carácter más restrictivo. ...

  18. Flujos de agua, flujos de capital: sistemas de abastecimiento y gobernanza del agua en Madrid y Barcelona

    OpenAIRE

    Hug March; David Saurí

    2010-01-01

    El agua es un elemento clave para el sustento del metabolismo de las ciudades. Sin embargo, los orígenes, métodos de «producción», y modelos de gestión del flujo de urbano de agua pueden variar geográficamente. En este artículo se comparan los sistemas de abastecimiento y gestión de agua potable en las dos principales regiones metropolitanas del Estado: Barcelona y Madrid. En Barcelona, el agua procede de distintas fuentes entre las cuales destaca la desalación, vigente desde el verano de 200...

  19. Richard Lindau y el museo de arte japonés de Barcelona

    Directory of Open Access Journals (Sweden)

    Bru Turull, Ricard

    2012-03-01

    Full Text Available Richard Lindau resided as a diplomat in Japan between 1866 and 1868, where he acquired in Edo (Tokyo an extensive and exceptional collection of Japanese art. After being named German consul in Barcelona (1876, Lindau offered his collection to the public by opening his residence in the centre of the city as a Japanese Museum. This paper aims to recover the history of this forgotten collection, which constituted one of the first private museums of Japanese art in Southern Europe.

    Richard Lindau residió como diplomático en Japón entre 1866 y 1868, durante los años de transición entre el shogunato Tokugawa y el nuevo sistema imperial Meiji. Lindau estuvo en el archipiélago nipón en el momento oportuno para adquirir una excepcional colección de arte japonés. Trasladado a Barcelona en 1876 como cónsul de Alemania, Lindau ofreció la colección al público abriendo su residencia y anunciándola como Museo Japonés. Este artículo recupera la historia de la colección olvidada de uno de los primeros museos privados de arte japonés del sur de Europa.

  20. Multiple lifestyle risk behaviours and excess weight among adolescents in Barcelona, Spain.

    Science.gov (United States)

    Continente, Xavier; Pérez, Anna; Espelt, Albert; Ariza, Carles; López, María José

    We aimed to analyse the prevalence of having multiple lifestyle risk behaviours (LRB) and the potential relationship between excess weight (including overweight and obesity) and cumulative multiple LRB among adolescents in Barcelona, Spain. A cross-sectional study was performed among a representative sample of 3,114 secondary school students in Barcelona. Height and weight were objectively measured and excess weight was defined in accordance with World Health Organization criteria. Information on screen time, breakfast, physical activity and sleep duration was obtained through a self-administered questionnaire. More than 80% of the students had at least two LRBs. In compulsory schooling, the adjusted prevalence ratio (aPR) of excess weight increased with a higher number of reported LRBs (four LRBs: aPR=1.56; 95% confidence interval: 1.19-2.05). These results highlight the importance of a multiple-behaviour approach in preventive programmes aimed at reducing adolescent obesity. Copyright © 2017 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.

  1. Sowing Resilience and Contestation in Times of Crises: The Case of Urban Gardening Movements in Barcelona

    Directory of Open Access Journals (Sweden)

    Marta Camps-Calvet

    2015-07-01

    Full Text Available Urban gardens have been observed to multiply in response to crises. However, the meaning and motivations behind the emergence of gardening movements varies greatly over space and time. In this paper we argue that bottom up urban gardening initiatives taking place in Southern European countries in form of land occupation and communalization represent forms of resistance that enhance social cohesion and collective action in times of need. Specifically, this research examines the role of urban gardens in (i building community resilience and (ii articulating forms of resistance and contestation to development pressure and commodified urban lifestyles. Our research is based on data collected among 27 urban gardening initiatives in Barcelona, Spain, including 13 self-governed community gardens and 14 public gardens. Data were collected from semi-structured interviews with gardeners and with staff from the Barcelona City Council. Our results show mechanisms through which urban gardens can contribute to build resilience by nurturing social and ecological diversity, generating and transmitting local ecological knowledge, and by creating opportunities for collective action and self-organization. We further examine collectively managed gardens as urban commons that emerge as a form of resistance to the privatization of public urban space, and that offer opportunities to experiment with new models of urban lifestyles. We show how gardening initiatives can be seen to represent an emerging form of urban green commons that provides a suitable ground to ‘sow’ resilience and contestation in times of crises and socio-ecological deterioration.

  2. ¿Negociar la entrada del rey? La entrada real de Juan II en Barcelona

    Directory of Open Access Journals (Sweden)

    Raufast Chico, Miguel

    2006-06-01

    Full Text Available

    Based on the archival documents generated by John II’s royal entry to Barcelona as the new king of Aragon in 1458, this article explores the process involved in preparing for this ceremonies. It also aims to show that in certain circumstances the dialogue between king and city —the two parties concerned— that led to the final conception of this elaborate ceremony, might almost be considered a kind of negotiation.



    Basado en documentación archivística generada por la entrada real de Juan II como nuevo monarca de la Corona de Aragón en Barcelona en 1458, este artículo llama la atención sobre el proceso de preparación de este tipo de ceremonias, en el cual intervienen tanto el rey como la ciudad. Al mismo tiempo, se intenta mostrar que el diálogo que se establece entre ambas partes en relación a este hecho puede llegar, en determinadas circunstancias, a asimilarse a una negociación.

  3. 6th International Accounting Congress of Barcelona (1929 organised by the Association of Accountants of Catalonia

    Directory of Open Access Journals (Sweden)

    Josepa Alemany

    2017-01-01

    Full Text Available Purpose: the work presented is a descriptive, contextual and detailed analysis of the activity, and the conclusions developed in the first international accounting conference held in Barcelona. The 6th International Conference on Accounting which took place in Barcelona coinciding with the International Exhibition of 1929, was organised by the Association Internationale de Comptabilité of Brussels. This association proposed holding regular meetings to discuss and study technical accounting and economic issues related to that time. Approach: the originality of the work lies in being an analytical description of the original documents prepared by the Association of Accountants of Catalonia about the conference. Findings/Originality: this study allows redoing assumptions made in previous works, because the documents before this work were contradictory regarding dates, facts and some of the content covered. Limitations: the biggest limitation of the work comes from the lack of written documentation existing on this conference. Value: the present study continues the research on topics of history of accounting in Catalonia. It is expected to complement this work by a deeper analysis of the contents and the topics covered in the papers presented at the conference, and by linking them with the theoretical accounting lines existing at that time.

  4. Quantification of thermal bioclimate for the management of urban design in Mediterranean climate of Barcelona, Spain.

    Science.gov (United States)

    Rodríguez Algeciras, José Abel; Matzarakis, Andreas

    2016-08-01

    In order to contribute to the sustainability of the outdoor environment, knowledge about the urban thermal bioclimate should be transferred into climatic guidelines for planning. The general framework of this study responds to the need of analyzing thermal bioclimate in Mediterranean climate regions and its influence as an urban design factor. The paper analyzes the background of the urban climate and thermal bioclimate conditions in Barcelona (Spain), through the effect of shade conditions and wind speed variations. Simulations of shade and wind speed variations were performed to evaluate changes in thermal bioclimate due to modifications in urban morphology. Air temperature, relative humidity, wind speed, and solar radiation for the period from January, 2001 to January, 2015 were used to calculate physiologically equivalent temperature (PET) using the RayMan model. The results demonstrate that shade is the most important strategy to improve urban microclimatic conditions. In Barcelona, human thermal comfort conditions can be improved by shade and wind speed increase in terms of PET above 23 °C and by a wind speed decrease for thresholds of PET below 18 °C. Heat stress situations can be mitigated by shade and wind speed increase in conditions above 35 and 45 °C, respectively. The results of the study are an important contribution for urban planners, due to their possibilities and potential for the description of microclimatic conditions in Mediterranean climate regions. The knowledge is useful for improved human thermal comfort conditions, from the suitable configuration of urban form and architecture.

  5. Quantification of thermal bioclimate for the management of urban design in Mediterranean climate of Barcelona, Spain

    Science.gov (United States)

    Rodríguez Algeciras, José Abel; Matzarakis, Andreas

    2016-08-01

    In order to contribute to the sustainability of the outdoor environment, knowledge about the urban thermal bioclimate should be transferred into climatic guidelines for planning. The general framework of this study responds to the need of analyzing thermal bioclimate in Mediterranean climate regions and its influence as an urban design factor. The paper analyzes the background of the urban climate and thermal bioclimate conditions in Barcelona (Spain), through the effect of shade conditions and wind speed variations. Simulations of shade and wind speed variations were performed to evaluate changes in thermal bioclimate due to modifications in urban morphology. Air temperature, relative humidity, wind speed, and solar radiation for the period from January, 2001 to January, 2015 were used to calculate physiologically equivalent temperature (PET) using the RayMan model. The results demonstrate that shade is the most important strategy to improve urban microclimatic conditions. In Barcelona, human thermal comfort conditions can be improved by shade and wind speed increase in terms of PET above 23 °C and by a wind speed decrease for thresholds of PET below 18 °C. Heat stress situations can be mitigated by shade and wind speed increase in conditions above 35 and 45 °C, respectively. The results of the study are an important contribution for urban planners, due to their possibilities and potential for the description of microclimatic conditions in Mediterranean climate regions. The knowledge is useful for improved human thermal comfort conditions, from the suitable configuration of urban form and architecture.

  6. Cerdà and Barcelona: The need for a new city and service provision

    Directory of Open Access Journals (Sweden)

    Montserrat Pallares Barbera

    2011-01-01

    Full Text Available This paper examines Ildefons Cerdà’s 1860 Plan for the Urban Expansion of Barcelona; specifically, how and why it was conceived in a unique way, in which the provision of services to the population was an important part. Cerdà based his expansion proposal on an in depth socio statistical study of old Barcelona’s population conditions. The high mortality rates of the working class population and poor health and education conditions pushed Cerdà to design a new type of urban planning, which he defined as “urbanism”. In his proposal for the new city, he planned the location of services such as marketplaces, schools and hospitals. The first part of this paper introduces the urban and political preconditions of Barcelona and the statistics on which Cerdà based his contribution. The second part uses location theory and a geographic information system (GIS to analyse the pattern of location and the population served by markets and hospitals. In addition, topographic maps from 1926 and 1975 are used to study the development of the expansion up to when it was fully developed. The evolution of the city differed from Cerdà’s proposal, partly due to unexpected increases in population density, the built environment, and higher amounts of building occupation. Nevertheless, Cerdà’s layout of streets and avenues has prevailed.

  7. Evidence of biomass burning aerosols in the Barcelona urban environment during winter time

    Science.gov (United States)

    Viana, M.; Reche, C.; Amato, F.; Alastuey, A.; Querol, X.; Moreno, T.; Lucarelli, F.; Nava, S.; Calzolai, G.; Chiari, M.; Rico, M.

    2013-06-01

    The influence of biomass burning (BB) aerosols, whether of regional or local origin, on fine aerosol levels in the Barcelona urban environment (Spain) was investigated. High-time resolved data on light-absorbing aerosols and inorganic tracers in PM2.5 were combined to this end during a dedicated sampling campaign carried out in winter 2011. The evaluation of PM inorganic components and equivalent black carbon evidenced that local-scale BB emissions were not detectable, whereas a source of K, different to vehicular traffic (road dust) and construction/demolition dust re-suspension, was detectable in the urban area. Source apportionment analysis evidenced the contribution from one source traced by S (62% of the source profile) and K (16% of the source profile), which was interpreted as regional-scale transport of secondary aerosols including BB contributions. The S/K ratio for this source (S/K = 4.4) indicated transport of the polluted air masses, as occurs from the rural areas towards the Barcelona urban environment. On average for the study period, the contribution of K-related aerosols from regional BB to PM2.5 levels in the urban environment was estimated as 1.7 μg/m3 as a daily mean, accounting for 8% of the PM2.5 mass during the winter period under study. The contribution from this source to urban aerosols should be lower on the annual scale.

  8. [Thirty Years of Health Surveillance of Foods in Barcelona: The "ICSA" Food Quality Research Program].

    Science.gov (United States)

    Fontcuberta-Famadas, Mireia; Rodellar-Torras, Santiago; Portaña-Tudela, Samuel; Durán-Neira, Julia

    2015-01-01

    The Food Health Quality Research Program (Investigación de la Calidad Sanitaria de los Alimentos [ICSA]) of the Public Health Agency of Barcelona (Agencia de Salud Pública de Barcelona [ASPB]) was initiated in 1984 to carry out surveillance of certain chemical and microbiological parameters related to the sanitary and safety of foods sold in the city. The present article analyzes the importance of health surveillance and provides details of the uses of the ICSA program. The main aim of this program is to evaluate whether marketed foods comply with the absence and/or established tolerance levels of specific parameters. Nevertheless, the program is able to incorporate or suppress parameters or foods that pose emerging dangers or interests not represented in current legislation. Besides, the program not only obtains a view of the parameters studied at a specific time period in each report, but also accumulates data over time, allowing risk assessment, calculation of dietary intake of contaminants, analysis of tendencies, and evaluation of the effectiveness of regulations to reduce contaminants. The program can also help in the planning of food control programs. The information obtained is disseminated nationally and internationally and is included in dossiers of contaminants issued by national and European health agencies. This demonstrates that a locally-developed surveillance system can have a wider scope and broader objectives and can provide useful information for managers, administrations, economic operators and consumers.

  9. Wiki en la Universitat Autònoma de Barcelona. Alcance y perspectivas

    Directory of Open Access Journals (Sweden)

    Sergi Robles

    2010-01-01

    Full Text Available Desde mayo del año 2004, un grupo de profesores de la Universitat Autònoma de Barcelona ha llevado a cabo distintas experiencias docentes en educación superior enfocadas a los nuevos planes piloto definidos en el marco del Espacio Europeo de Educación Superior (EEES basadas en la utilización del wiki, con el fin de mejorar el proceso de enseñanza-aprendizaje de los estudiantes. Se han desarrollado distintos materiales docentes para el aprendizaje autónomo y semi-presencial, diseñados para potenciar el trabajo colaborativo y a distancia. El análisis de los resultados obtenidos con la aplicación del wiki a la docencia ha permitido identificar las ventajas y las carencias del sistema de trabajo inicial y ampliar sus posibilidades con herramientas que aseguran una mejor adaptación de esta plataforma al EEES. La labor desarrollada por el grupo y el interés despertado en la comunidad universitaria son el punto de partida de la integración del wiki en el Campus Virtual (la plataforma institucional de soporte virtual del aprendizaje de la Universitat Autònoma de Barcelona que se está llevando a cabo actualmente.

  10. Análisis del comportamiento del turista de negocios en Barcelona

    Directory of Open Access Journals (Sweden)

    Jorge Moll de Alba Cabot

    2017-01-01

    Full Text Available Este artículo analiza el comportamiento de los turistas de negocios de la ciudad de Barcelona. Se estudia el efecto de la duración de la estancia en las relaciones de la motivación, la satisfacción, la imagen, la repetitividad y la recomendación. El modelo teórico propuesto se basa en la literatura, plantea 9 hipótesis de trabajo y aporta conocimiento sobre los efectos de la duración de la estancia sobre el destino. La metodología utilizada son los modelos de ecuaciones estructurales, y el uso del análisis multigrupo. La muestra usada son 2976 turistas de negocio que pernoctan en Barcelona. Los resultados sugieren que los turistas profesionales de corta y larga estancia se comportan de manera diferente, así como que la mayoría de hipótesis son aceptadas con diferente grado de intensidad. También permiten proponer implicaciones y sugerencias en el ámbito de las políticas turísticas, estrategias de gestión y futuras líneas de investigación.

  11. Modeling of photochemical air pollution in the Barcelona area with highly disaggregated anthropogenic and biogenic emissions

    International Nuclear Information System (INIS)

    Toll, I.; Baldasano, J.M.

    2000-01-01

    The city of Barcelona and its surrounding area, located in the western Mediterranean basin, can reach high levels of O 3 in spring and summertime. To study the origin of this photochemical pollution, a numerical modeling approach was adopted and the episode that took place between 3 and 5 August 1990 was chosen. The main meteorological mesoscale flows were reproduced with the meteorological non-hydrostatic mesoscale model MEMO for 5 August 1990, when weak pressure synoptic conditions took place. The emissions inventory was calculated with the EIM-LEM model, giving highly disaggregated anthropogenic and biogenic emissions in the zone studied, an 80 x 80 km 2 area around the city of Barcelona. Major sources of VOC were road traffic (51%) and vegetation (34%), while NO x were mostly emitted by road traffic (88%). However, emissions from some industrial stacks can be locally important and higher than those from road traffic. Photochemical simulation with the MARS model revealed that the combination of mesoscale wind flows and the above-mentioned local emissions is crucial in the production and transport of O 3 in the area. On the other hand, the geostrophic wind also played an important role in advecting the air masses away from the places O 3 had been generated. The model simulations were also evaluated by comparing meteorological measurements from nine surface stations and concentration measurements from five surface stations, and the results proved to be fairly satisfactory. (author)

  12. Gobernanza Urbana y Participación Comunitaria. Los Casos de Barcelona, Bilbao y Pamplona (Urban Governance and Community Involvement. Cases of Barcelona, Bilbao and Pamplona

    Directory of Open Access Journals (Sweden)

    Imanol Telleria

    2015-12-01

    Full Text Available This article is based on a detailed study of three cases (Barcelona, ​​Pamplona and Bilbao trying to address from a theoretical perspective a more current characterization of urban movements, joining in a framework of analysis the contributions of the American and European schools study of social movements. To do this, we present the results of empirical research conducted in the districts of the three cities and perform a comparison of the most important variables. This research shows that urban movements have become increasing their ability to access aided by the opening of opportunities on local governance (EOP and have driven participatory processes articulated from a communitarian methodology (repertoires, intended to promote democratic management of the city (speech from reticular logic (organization oriented at re-structuring of society, as a prelude to increasing its influence on urban policies. Este artículo se basa en un estudio en profundidad de tres casos (Barcelona, Pamplona y Bilbao tratando de abordar desde una perspectiva teórica una caracterización más actual de los movimientos urbanos, aunando en un marco de análisis los aportes de las escuelas americana y europea de estudio de los movimientos sociales. Para ello, presentamos los resultados de la investigación empírica realizada en los barrios de las tres ciudades y realizamos una comparativa de las variables más importantes. Este estudio demuestra que los movimientos urbanos se han transformado aumentando su capacidad de acceso ayudados por  la apertura de oportunidades provocada por la gobernanza local (EOP y han impulsado procesos participativos que, articulados desde la metodología comunitaria (repertorios, pretenden provocar un impulso de la gestión democrática de la ciudad (discurso a partir de lógicas reticulares (organización orientadas a la re-vertebración de la sociedad, como paso previo al aumento de su  influencia sobre las políticas urbanas

  13. Reactor core of nuclear reactor

    International Nuclear Information System (INIS)

    Sasagawa, Masaru; Masuda, Hiroyuki; Mogi, Toshihiko; Kanazawa, Nobuhiro.

    1994-01-01

    In a reactor core, a fuel inventory at an outer peripheral region is made smaller than that at a central region. Fuel assemblies comprising a small number of large-diameter fuel rods are used at the central region and fuel assemblies comprising a great number of smalldiameter fuel rods are used at the outer peripheral region. Since a burning degradation rate of the fuels at the outer peripheral region can be increased, the burning degradation rate at the infinite multiplication factor of fuels at the outer region can substantially be made identical with that of the fuels in the inner region. As a result, the power distribution in the direction of the reactor core can be flattened throughout the entire period of the burning cycle. Further, it is also possible to make the degradation rate of fuels at the outer region substantially identical with that of fuels at the inner side. A power peak formed at the outer circumferential portion of the reactor core of advanced burning can be lowered to improve the fuel integrity, and also improve the reactor safety and operation efficiency. (N.H.)

  14. Nuclear reactor

    International Nuclear Information System (INIS)

    Gibbons, J.F.; McLaughlin, D.J.

    1978-01-01

    In the pressure vessel of the water-cooled nuclear reactor there is provided an internal flange on which the one- or two-part core barrel is hanging by means of an external flange. A cylinder is extending from the reactor vessel closure downwards to a seat on the core cupport structure and serves as compression element for the transmission of the clamping load from the closure head to the core barrel (upper guide structure). With the core barrel, subject to tensile stress, between the vessel internal flange and its seat on one hand and the compression of the cylinder resp. hold-down element between the closure head and the seat on the other a very strong, elastic sprung structure is obtained. (DG) [de

  15. Nuclear reactor

    International Nuclear Information System (INIS)

    Aleite, W.; Bock, H.W.; Struensee, S.

    1976-01-01

    The invention concerns the use of burnable poisons in a nuclear reactor, especially in PWRs, in order to improve the controllability of the reactor. An unsymmetrical arrangement in the lattice is provided, if necessary also by insertion of special rods for these additions. It is proposed to arrange the burnable poisons in fuel elements taken over from a previous burn-up cycle and to distribute them, going out from the side facing the control rods, over not more than 20% of the lenth of the fuel elements. It seems sufficient, for the burnable poisons to bind an initial reactivity of only 0.1% and to become ineffective after normal operation of 3 to 4 months. (ORU) [de

  16. Reactor container

    International Nuclear Information System (INIS)

    Otsuka, Hiroaki; Yoshida, Takashi.

    1979-01-01

    Purpose: To prevent rain water falling along the outer wall of the container during the construction work of an atomic power plant from making ingress into the inner part of a reactor container through a large size material carry-in port. Constitution: A weir for preventing the ingress of rain water is provided on the border between the foot floor of a large material carry-in port provided on the side surface at the bottom part of the reactor container and the floor surface of the building. This weir is of a semi-circular plate shape, and formed so that the lower semi-circular part of the carry-in port is tightly closed. (Kamimura, M.)

  17. Reactor container

    International Nuclear Information System (INIS)

    Ichiki, Tadaharu; Saba, Kazuhisa.

    1979-01-01

    Purpose: To improve the earthquake resistance as well as reduce the size of a container for a nuclear reactor with no adverse effects on the decrease of impact shock to the container and shortening of construction step. Constitution: Reinforcing profile steel materials are welded longitudinally and transversely to the inner surface of a container, and inner steel plates are secured to the above profile steel materials while keeping a gap between the materials and the container. Reactor shielding wall planted to the base concrete of the container is mounted to the pressure vessel, and main steam pipeways secured by the transverse beams and led to the outside of container is connected. This can improve the rigidity earthquake strength and the safetiness against the increase in the inside pressure upon failures of the container. (Yoshino, Y.)

  18. Reactor container

    International Nuclear Information System (INIS)

    Oyamada, Osamu; Furukawa, Hideyasu; Uozumi, Hiroto.

    1979-01-01

    Purpose: To lower the position of an intermediate slab within a reactor container and fitting a heat insulating material to the inner wall of said intermediate slab, whereby a space for a control rod exchanging device and thermal stresses of the inner peripheral wall are lowered. Constitution: In the pedestal at the lower part of a reactor pressure vessel there is formed an intermediate slab at a position lower than diaphragm floor slab of the outer periphery of the pedestal thereby to secure a space for providing automatic exchanging device of a control rod driving device. Futhermore, a heat insulating material is fitted to the inner peripheral wall at the upper side of the intermediate slab part, and the temperature gradient in the wall thickness direction at the time of a piping rupture trouble is made gentle, and thermal stresses at the inner peripheral wall are lowered. (Sekiya, K.)

  19. Neutronic reactor

    International Nuclear Information System (INIS)

    Lewis, W.R.

    1978-01-01

    Disclosed is a graphite-moderated, water-cooled nuclear reactor including a plurality of rectangular graphite blocks stacked in abutting relationship in layers, alternate layers having axes which are normal to one another, alternate rows of blocks in alternate layers being provided with a channel extending through the blocks, said channeled blocks being provided with concave sides and having smaller vertical dimensions than adjacent blocks in the same layer, there being nuclear fuel in the channels

  20. Nuclear reactor

    International Nuclear Information System (INIS)

    Shirakawa, Toshihisa.

    1979-01-01

    Purpose: To prevent cladding tube injuries due to thermal expansion of each of the pellets by successively extracting each of the control rods loaded in the reactor core from those having less number of notches, as well as facilitate the handling work for the control rods. Constitution: A recycle flow control device is provided to a circulation pump for forcibly circulating coolants in the reactor container and an operational device is provided for receiving each of the signals concerning number of notches for each of the control rods and flow control depending on the xenon poisoning effect obtained from the signals derived from the in-core instrument system connected to the reactor core. The operational device is connected with a control rod drive for moving each of the control rods up and down and a recycle flow control device. The operational device is set with a pattern for the aimed control rod power and the sequence of extraction. Upon extraction of the control rods, they are extracted successively from those having less notch numbers. (Moriyama, K.)

  1. Reactor building

    International Nuclear Information System (INIS)

    Ebata, Sakae.

    1990-01-01

    At least one valve rack is disposed in a reactor building, on which pipeways to a main closure valve, valves and bypasses of turbines are placed and contained. The valve rack is fixed to the main body of the building or to a base mat. Since the reactor building is designed as class A earthquake-proofness and for maintaining the S 1 function, the valve rack can be fixed to the building main body or to the base mat. With such a constitution, the portions for maintaining the S 1 function are concentrated to the reactor building. As a result, the dispersion of structures of earthquake-proof portion corresponding to the reference earthquake vibration S 1 can be prevented. Accordingly, the conditions for the earthquake-proof design of the turbine building and the turbine/electric generator supporting rack are defined as only the class B earthquake-proof design conditions. In view of the above, the amount of building materials can be saved and the time for construction can be shortened. (I.S.)

  2. Los Juegos Olímpicos de Barcelona, 25 años después (3

    Directory of Open Access Journals (Sweden)

    Francesc Solanellas Donato

    2017-09-01

    Full Text Available Uno de los ejes básicos de la organización de unos juegos olímpicos son sus instalaciones deportivas. Desde esta perspectiva se analizan la inversión, la gestión y el impacto que estas han tenido en la ciudad de Barcelona. Las instalaciones olímpicas de Barcelona 1992 no se situaron únicamente en la ciudad ni todas ellas fueron explotadas en base al mismo deporte que albergaron. Uno de los éxitos de Barcelona fue dimensionar la inversión de acuerdo con las necesidades reales de la ciudad. También en materia de instalaciones deportivas se cumplió este principio. En este tercer artículo se aportan datos económicos, información sobre la construcción y posterior gestión de las instalaciones deportivas y su impacto en el incremento de la práctica deportiva de la ciudadanía de Barcelona.

  3. No cardiac damage after endurance exercise in cardiologists cycling to the European Society of Cardiology meeting in Barcelona

    NARCIS (Netherlands)

    Appelman, Yolande; van der Borgh, Roger; van Dantzig, Jan Melle; Mosterd, Arend; Daniels, Marcel; Doevendans, Pieter A.

    Aims There are variable results reported for athletes and potential cardiac damage during exercise. In 2009 a group of cardiologists went by bicycle from the Netherlands to the European Society of Cardiology meeting in Barcelona and collected functional and biochemical parameters during this trip in

  4. Las bibliotecas de los centros públicos de Educación Secundaria en la ciudad de Barcelona

    Directory of Open Access Journals (Sweden)

    Teresa Mañà

    2002-01-01

    Full Text Available The article analyzes the situation of libraries in education centres in the town of Barcelona (Spain following a study developed during the first three months of 2001. From several points in the form (collections, organization, staff, services... the overview shows an unstable situation, which can be generalized to the rest of school libraries in Spain

  5. Defectos en soldaduras de estructura metálica. Aplicación a una obra en Barcelona

    OpenAIRE

    Pérez Vergara, Francisco

    2009-01-01

    Estudio de los defectos y aceptación de los mismos, en las uniones soldadas de una estructura metálica importante de una obra singular en Barcelona. Análisis de los ensayos destructivos y no destructivos de Aceptación de las soldaduras.

  6. La Casa Municipal de Misericordia de Barcelona : historia de su evolución arquitectónica

    Directory of Open Access Journals (Sweden)

    Raquel Lacuesta Contreras

    1992-01-01

    Full Text Available El conjunto de edificios que conforma actualmente la Casa de Misericordia de Barcelona es el resultado de una serie de actuaciones concretas, no planificadas desde el punto de vista urbanístico, durante las cuales se han ido construyendo, reformando, ampliando o derribando edificios a lo largo de cuatro siglos.

  7. Outbreak of intestinal amoebiasis among men who have sex with men, Barcelona (Spain), October 2016 and January 2017.

    Science.gov (United States)

    Escolà-Vergé, Laura; Arando, Maider; Vall, Martí; Rovira, Roger; Espasa, Mateu; Sulleiro, Elena; Armengol, Pere; Zarzuela, Francesc; Barberá, María-Jesús

    2017-07-27

    Entamoeba histolytica has been recently recognised as an emerging sexually transmissible pathogen in men who have sex with men (MSM), causing sporadic outbreaks in countries where it is not endemic. Here we report two closed clusters of invasive amoebiasis occurring in Barcelona, Spain, in October 2016 (four cases) and in January 2017 (four cases). This article is copyright of The Authors, 2017.

  8. Emprendimiento y supervivencia empresarial en época de crisis: El caso de Barcelona

    Directory of Open Access Journals (Sweden)

    Marian Buil Fabregá

    2016-02-01

    Full Text Available Objeto: El trabajo que se presenta en este artículo es la primera parte de un estudio sobre las estrategias llevadas a cabo por las empresas en épocas de crisis. Este primer artículo analiza las características financieras de las empresas creadas en Barcelona en los inicios de la crisis y que han sobrevivido durante la misma. Este estudio pretende contrastar las características financieras de las empresas analizadas con las medidas llevadas a cabo para mantener su rentabilidad en épocas de crisis y determinar si existen patrones de comportamiento distintos entre empresas creadas en sectores industriales y no industriales. Diseño/metodología: Análisis estadístico-descriptivo de las medias y variaciones de los principales indicadores financieros y de recursos humanos que se relacionan con  las medidas tomadas por las empresas  en época de crisis. La base de datos utilizada ha sido el SABI y el período de referencia 2008-2013. Aportaciones y resultados: Las empresas creadas en Barcelona en los inicios de la crisis y que han sobrevivido presentan algunos rasgos comunes: muestran un EBITDA positivo, los recursos propios constituyen una fuente relevante de financiación, tienden a reducir su nivel de endeudamiento o se disminuye inversión. Los ratios de la rentabilidad financiera son muy bajos ya que el patrimonio neto de la empresa es alto y la deuda es baja. Referente a los indicadores de recursos humanos, nos indican la importancia de las empresas de nueva creación en la generación de empleo y sus tasas de productividad son altas. Valor añadido: Determinar las características financieras de las empresas creadas en los inicios de la crisis y que sobreviven en Barcelona en época de crisis para determinar si siguen medidas para mantener su rentabilidad. La existencia de un conjunto de medidas estadísticamente significativas puede servir de guía a los emprendedores del futuro así como de las políticas públicas de apoyo a los

  9. Synoptic analysis of heat waves in the Barcelona city (Catalonia, Spain) during 21st century

    Science.gov (United States)

    Amaro, Jéssica; Peña, Juan Carlos; Miró, Josep Ramon; Aran, Montserrat

    2017-04-01

    The impact of extremely warm episodes on health has been analysed by a large number of studies conducted in different countries and cities, showing that heat waves events (HWE) can cause an abrupt increase in mortality. A HWE was defined as a 7-day sequence following a key-day labelled by the 95th percentile of Barcelona daily mortality (see Peña et al., 2015). The aim of this study is to identify synoptic patterns associated to HWE in Barcelona over the 21st century and evaluate the impact and possible mitigations. To achieve it, a multivariate analysis (MVA) integrating different atmospheric levels (sea level pressure, temperature at 850 hPa and geopotential at 500 hPa) was undertaken. The observed data used for this study was the 20th Century Reanalysis. The Max Planck Institute Earth system model was used to study two scenarios (RCP 4.5 and RCP 8.5) during the 21st century. The model was calibrated given the variability in the climate scenario, using the Quantile-Quantile mapping transformation (Q-Q). The MVA applied to the observed period (1990-2015) distinguish three main synoptic patterns: two dynamic configurations produced by southern fluxes related to an Atlantic low, associated with HWE recorded in southern Europe, and a third pattern identified by a stagnation situation related to persistent anticyclone periods. These patterns were also detected in the control simulated period (1961-2005) after the Q-Q calibration, preserving, therefore, the climatic variability: the number of HWE during the warm period (1990-2005) is twice more than during the cold period (1976-1989) due to an intensification of the warm masses. In the RCP 4.5 scenario (2006-2100 period) a positive and significant trend is shown in synoptic patterns which provoke HWE in Barcelona, especially during August; in the RCP 8.5 scenario there is no significant trend, but the intensification of the warm masses is higher.

  10. On the spatial distribution and evolution of ultrafine particles in Barcelona

    Directory of Open Access Journals (Sweden)

    M. Dall'Osto

    2013-01-01

    Full Text Available Sources and evolution of ultrafine particles were investigated both horizontally and vertically in the large urban agglomerate of Barcelona, Spain. Within the SAPUSS project (Solving Aerosol Problems by Using Synergistic Strategies, a large number of instruments was deployed simultaneously at different monitoring sites (road, two urban background, regional background, urban tower 150 m a.s.l., urban background tower site 80 m a.s.l. during a 4 week period in September–October 2010. Particle number concentrations (N>5 nm are highly correlated with black carbon (BC at all sites only under strong vehicular traffic influences. By contrast, under cleaner atmospheric conditions (low condensation sink, CS such correlation diverges towards much higher N/BC ratios at all sites, indicating additional sources of particles including secondary production of freshly nucleated particles. Size-resolved aerosol distributions (N10–500 as well as particle number concentrations (N>5 nm allow us to identify three types of nucleation and growth events: (1 a regional type event originating in the whole study region and impacting almost simultaneously the urban city of Barcelona and the surrounding urban background area; (2 a regional type event impacting only the regional background area but not the urban agglomerate; (3 an urban type event which originates only within the city centre but whose growth continues while transported away from the city to the regional background. Furthermore, during these clean air days, higher N are found at tower level than at ground level only in the city centre whereas such a difference is not so pronounced at the remote urban background tower. In other words, this study suggests that the column of air above the city ground level possesses the optimal combination between low CS and high vapour source, hence enhancing the concentrations of freshly nucleated

  11. Methodology for the Detection of Residential Vulnerable Areas - the Case of Barcelona

    Science.gov (United States)

    Cornado, Cossima; Garcia-Almirall, Pilar; Vima, Sara; Vila Busqued, Gemma; Uzqueda, Angel

    2017-10-01

    In a context of a shifting environmental, economic and social paradigm, European cities face a situation that is at the same time challenge and opportunity: the need for urban rehabilitation of the vulnerable degraded socio residential fabric. Public administrations in big cities and metropolitan areas are confronted with both the undercurrent need of actualization of the built stock and the rise of urban residential vulnerability. The city of Barcelona, as many others, is the result of multiple phenomena with high urban and social consequences. The socio spatial integration of immigrant population, the touristic rise and gentrification processes are current situations simultaneously taking place in the city. In parallel, a framework of economic crisis in which public investments in urban and social matters decrease, provides a temporal juncture that results into an increase of social polarization and socio economic inequality that becomes evident and expressed in the territory. This research focuses in the case of Barcelona, and presents a methodology based on a system of indicators elaborated through the exploitation of statistical data complemented with very specific data supplied by the Barcelona City Council. The accurate knowledge of socio demographic, socioeconomic and residential and urban characteristics is crucial in order to define the very complex urban dynamics that describe in the city neighbourhoods and areas. Residential vulnerability is defined as an assembly of objective conditions that relate to residential space and indicate situations of social discrimination and structural disadvantage of the population, related to a specific time and context. Thus, it is relevant to analyse the concentration of certain indicators of vulnerability in specific places or neighbourhoods, to contrast its effect on the socio-residential situation and its temporal evolution in order to identify tendencies. The present study contributes to the identification of data

  12. Analysis of the radiometric survey during the Argonauta reactor operation; Analise do levantamento radiometrico durante operacao do reator Argonauta

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Eara de S.L.; Cardozo, Katia K.M.; Silva, Joao Carlos P.; Santos, Joao Regis dos, E-mail: esluz@ien.gov.br, E-mail: cardozo@ien.gov.br, E-mail: jcarlos@ien.gov.br, E-mail: regis@ien.gov.br [Instituto de Engenharia Nuclear (CNEN-IEN/RJ), Rio de Janeiro - RJ (Brazil)

    2013-07-01

    The Argonaut reactor at the Institute of Nuclear Engineering-IEN/CNEN, operates normally, the powers between 1.7 and 340 W on neutrongraphy procedures, production of radionuclides and experimental reactor physics lessons to postgraduate courses. The doses from neutrons and gamma radiation are measured when the reactor is critical, inside the reactor hall and surrounding regions. A study of the data obtained was performed to evaluate the daily need of this survey in the reactor hall. Taking into account the principle ALARA, which aims to optimize and minimize the dose received by the individual, we propose, in this work, through an analysis of the acquired data in occupational radiometric surveys, a reformulation of the area monitoring routine practiced by the team of radiological protection of the Institute of Nuclear Engineering - IEN/CNEN-RJ, whereas other monitoring routines regarding the radiological protection are also applied in the routine of the reactor. The operations under review occurred with the reactor operating 340 W power at intervals of 60, 120 and 180 minutes, in monitoring points in controlled areas, supervised and free. The results showed significant dose values in the output of the J-Channel 9 when the operation occurs with this open. With 180 minutes of operation, the measured values of dose rate were lower than the values at 60 min and 120 operations min. At the point in the supervised area, offsite to the reactor hall, situated in the direction of the J-Channel 9, the value reduces more than 14% in any operating time in relation to the dose rate measured at the point opposite the canal. There is a 50% reduction in the dose rates for operations with and J-9 closed. The results suggest a new frequency of radiometric survey whose mode of operation is maintained in similar conditions, since combined with other relevant practices of radiation protection.

  13. Nuclear research reactors

    International Nuclear Information System (INIS)

    1985-01-01

    It's presented data about nuclear research reactors in the world, retrieved from the Sien (Nuclear and Energetic Information System) data bank. The information are organized in table forms as follows: research reactors by countries; research reactors by type; research reactors by fuel and research reactors by purpose. (E.G.) [pt

  14. Nuclear reactor physics course for reactor operators

    International Nuclear Information System (INIS)

    Baeten, P.

    2006-01-01

    The education and training of nuclear reactor operators is important to guarantee the safe operation of present and future nuclear reactors. Therefore, a course on basic 'Nuclear reactor physics' in the initial and continuous training of reactor operators has proven to be indispensable. In most countries, such training also results from the direct request from the safety authorities to assure the high level of competence of the staff in nuclear reactors. The aim of the basic course on 'Nuclear Reactor Physics for reactor operators' is to provide the reactor operators with a basic understanding of the main concepts relevant to nuclear reactors. Seen the education level of the participants, mathematical derivations are simplified and reduced to a minimum, but not completely eliminated

  15. Climate Change and Health in the Urban Context: The Experience of Barcelona.

    Science.gov (United States)

    Villalbí, Joan R; Ventayol, Irma

    2016-07-01

    Climate change poses huge challenges for public health, and cities are at the forefront of this process. The purpose of this paper is to present the issues climate change poses for public health in the city of Barcelona, how they are being addressed, and what are the current major challenges, trying to contribute to the development of a baseline understanding of the status of adaptation in cities from a public health perspective. The major issues related to climate change faced by the city are common to other urban centers in a Mediterranean climate: heat waves, water availability and quality, air quality, and diseases transmitted by vectors, and all are reviewed in detail with empirical data. They are not a potential threat for the future, but have actually challenged the city services and infrastructure over the last years, requiring sustainable responses and rigorous planning. © The Author(s) 2016.

  16. Les Vivendes del Congrés Eucarístic de Barcelona, 1952-1962

    OpenAIRE

    Hereu Payet, Pedro; Oliveras Samitier, Jordi; Paricio Casademunt, Antoni; Rodríguez Pedret, Carmen; Rosselló i Nicolau, Maribel

    2011-01-01

    El treball sobre les Vivendes del Congrés Eucarístic que presentem en aquesta publicació té un caràcter autònom, com a monografia centrada en un conjunt residencial que, per la seva dimensió, coherència i qualitat i per les característiques de la seva promoció, s’ens presenta com una peça singular dins del conjunt del teixit residencial que es construeix a Barcelona després de la Guerra Civil Espanyola. Ara bé, aquesta monografia és, alhora, una part del treball de recerca que el nostre equip...

  17. Suburban landscape assessment applied to urban planning. Case study in Barcelona Metropolitan Region

    Directory of Open Access Journals (Sweden)

    David Serrano Giné

    2015-12-01

    Full Text Available Urban fringes set complex landscapes, in transition from rural to natural and urban, with fuzzy boundaries in mutual interdependence. The European Landscape Convention gives notorious importance to everyday landscapes, including those of suburban character. Few landscape evaluation researches are done in suburban areas, which is surprising considering its importance and abundance. This paper shows a methodology, yield on geographical information systems (GIS, for landscape assessment of suburban areas, useful in urban planning. Its main interest lies in a double assessment, which considers both landscape quality and landscape fragility, applied systematically. The procedure is applied in Muntanyes d’Ordal in the metropolitan area of Barcelona (Spain, an area with pronounced regional strengths and contrasted landscape values. Results are of important applicability and indicate a predominance of mean values, both for landscape quality and landscape fragility.

  18. An evaluation of monk parakeet damage to crops in the metropolitan area of Barcelona

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    Senar, J. C.

    2016-05-01

    Full Text Available We evaluated damage to commercial crops caused by the monk parakeet, Myiopsitta monachus, in the Baix Llobregat agricultural area (1,024 ha bordering the city of Barcelona, Spain. Average crop loss was 0.4% for tomatoes, 28% for corn, 9% for red plums, 36% for round plums, 37% for pears, 17% for persimmons, and 7% for quinces. Our data show that the potential damage to crops by monk parakeets in this invaded area is now a reality. As a wait–and–see approach is likely to be a more costly strategy in the long–term, policy makers should assess issues such as the extent of damage, feasibility/cost benefit analysis, and public opinion so as to avoid greater damage and loss in the future.

  19. Regularizaciones y trayectorias de inmigrantes no comunitarios en la provincia de Barcelona

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    Andreu Domingo

    2012-01-01

    Full Text Available El objetivo de este trabajo es triple: 1 comparar el impacto de la Normalización de 2005, con el proceso de Arraigo instaurado en 2006; 2 analizar las trayectorias de los solicitantes de ambos programas después de su regularización; y 3 examinar la repesca de los solicitantes que no pudieron regularizar su estatus a través de la Normalización o posteriormente con el Arraigo. Se han adoptado dos enfoques, uno transversal, para analizar el volumen y la intensidad de entrada, y otro longitudinal para monitorizar las trayectorias de los solicitantes de ambos procesos. Para ello se han utilizado datos de la Subdelegación del Gobierno en Barcelona desde 2005 hasta 2010. Si bien los resultados arrojan cierto optimismo respecto a ambos procesos, también se demuestra la difi cultad de regularización en tiempos de crisis.

  20. Highlights of the EANM Congress Barcelona 2009: increasing our impact in diagnostic imaging

    International Nuclear Information System (INIS)

    Roca, Isabel

    2010-01-01

    The EANM Congress 2009 took place in Barcelona from 10 to 14 October under the chairmanship of Dr. Martin-Comin. As always, the meeting was successful with high-level scientific content and a great number of participants. In spite of the economic crisis, industry made an important contribution presenting new revolutionary equipment and tracers, and in particular the pharmaceutical industry has increased its involvement in our speciality. This article is a brief summary of the major scientific contributions presented at the annual congress 2009, highlighting the fields of nuclear medicine at a higher level of development, including those with an increased clinical impact (especially oncology, but also cardiology, neurology and other clinical sciences), new detectors and multimodality imaging, and those fields showing important progress, including radiochemistry and pharmacy (with the development of new tracers and increased collaboration of industry). (orig.)

  1. The tessera lusoria from Puig del Castell de Samalús (Barcelona: more than gaming tokens?

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    Marc GUÀRDIA I LLORENS

    2017-12-01

    Full Text Available In this paper we present a new tessera lusoria found in the Iberian site of Puig del Castell de Samalús (Cànoves i Samalús, Barcelona. The piece, made of bone, has a latin inscription on both sides, in wich we can read the vocative gvlo and numeral IIII. Beyond making a typological approach of the piece, we try to develop the meaning of their presence in an indigenous context and frame their presence within the rest of these gaming tokens located in the Citerior. We are incorporing new data, only through the collection of all tesserae lusoriae that we know its precise place of discovery. We will define its origin and try to approach to a better understanding of the phenomenon. We try to address the issue focusing on the context in which they were used, indicating the group these gaming tokens belonged.

  2. An evaluation of monk parakeet damage to crops in the metropolitan area of Barcelona

    Energy Technology Data Exchange (ETDEWEB)

    Senar, J.C.; Domenech, J.; Arroyo, L.; Torre, I.; Gordo, O.

    2016-07-01

    We evaluated damage to commercial crops caused by the monk parakeet, Myiopsitta monachus, in the Baix Llobregat agricultural area (1,024 ha) bordering the city of Barcelona, Spain. Average crop loss was 0.4% for tomatoes, 28% for corn, 9% for red plums, 36% for round plums, 37% for pears, 17% for persimmons, and 7% for quinces. Our data show that the potential damage to crops by monk parakeets in this invaded area is now a reality. As a wait–and–see approach is likely to be a more costly strategy in the long–term, policy makers should assess issues such as the extent of damage, feasibility/cost benefit analysis, and public opinion so as to avoid greater damage and loss in the future. (Author)

  3. Los futuros pedagogos ante el hecho religioso. Estudio exploratorio en la Universidad de Barcelona

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    Montserrat Freixa Niella

    2017-01-01

    Full Text Available Se presenta un estudio exploratorio sobre la diversidad religiosa-­‐cultural y el diálogo interreligioso surgido de la investigación financiada por la Generalitat de Cataluña “Gestionar la diversitat religiosa i cultural des de l’educació. Els Futurs agents socioeducatius” (2014 RELIG 00019. Se analizan los planes docentes de los grados de la facultad de Educación de la Universidad de Barcelona y se valida un instrumento de medición de las actitudes de los futuros agentes socioeducativos aplicándolo a una muestra de estudiantes de último curso de Pedagogía. Los resultados indican actitudes moderadamente altas y la importancia de estar formado para promover el diálogo interreligioso.

  4. [Community health assessment of the programme "Barcelona Health in the Neighbourhoods". Methodology for a participatory process].

    Science.gov (United States)

    Colell, Esther; Sánchez-Ledesma, Esther; Novoa, Ana M; Daban, Ferran; Fernández, Ana; Juárez, Olga; Pérez, Katherine

    2018-02-26

    This paper describes the methodology used for the assessment of health needs within a programme aimed at promoting health equity in disadvantaged neighbourhoods in the city of Barcelona (Spain). The assessment process involves the use of mixed methods (quantitative and qualitative) in order to obtain information regarding the health of the community, its determinants, and the availability of health-related assets. Quantitative data consists of indicators from different sources. Qualitative data collects the community's perspectives through interviews, focal groups and nominal groups. The combination of several data collection methods yields more complete information about the community, its needs and the resources available to meet them. Participation of community members in the process strengthens links between the community and the agents responsible for implementing the actions to address prioritised issues and favours community empowerment. Copyright © 2018 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.

  5. Estudio del impacto atmosférico del cambio del parque vehicular en Barcelona

    OpenAIRE

    Medina Moya, Roser

    2017-01-01

    Este TFG tiene como finalidad el cálculo de emisiones de contaminantes atmosféricos debidos al tráfico rodado en Barcelona para vehículos de más de 15 años de antigüedad que circulen por la ciudad y la posible retirada de estos vehículos a cambio de incentivos de transporte público gratuito durante 1 año. En éste se estiman las emisiones de óxido nitroso y partículas en suspensión producidas por el parque vehicular barcelonés (turismos, camiones, furgonetas, motocicletas y ciclomotores). P...

  6. An observational study of the 7 September 2005 Barcelona tornado outbreak

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    J. Bech

    2007-01-01

    Full Text Available This paper presents an observational study of the tornado outbreak that took place on the 7 September 2005 in the Llobregat delta river, affecting a densely populated and urbanised area and the Barcelona International airport (NE Spain. The site survey confirmed at least five short-lived tornadoes. Four of them were weak (F0, F1 and the other one was significant (F2 on the Fujita scale. They started mostly as waterspouts and moved later inland causing extensive damage estimated in 9 million Euros, three injured people but fortunately no fatalities. Large scale forcing was provided by upper level diffluence and low level warm air advection. Satellite and weather radar images revealed the development of the cells that spawned the waterspouts along a mesoscale convergence line in a highly sheared and relatively low buoyant environment. Further analysis indicated characteristics that could be attributed indistinctively to non-supercell or to mini-supercell thunderstorms.

  7. [Smoking in the hospitality sector: an observational study in Barcelona (Spain), 2008].

    Science.gov (United States)

    Villalbí, Joan R; Baranda, Lucía; López, M José; Nebot, Manel

    2010-01-01

    To describe the actual presence of smoking in restaurant and hospitality premises after the smoking prevention act banning smoking in workplaces came into force in 2006, with wide exemptions in this sector. We performed an observational, descriptive study in Barcelona (Catalonia, Spain) in 2008 based on cluster sampling, with 1130 premises. The results were stratified by premise type. Up to 85.7% of food shops allowing consumption within their premises (bakeries, pastry shops...) ban smoking, as well as 85% of fast food establishments. Among restaurants, 40% are smoke-free or have separate smoking areas. Bar-cafés and café-restaurants (the most abundant premises) usually allow smoking. There are more smoke-free options in central districts and in shopping malls. Up to 75.4% of all premises allow smoking freely. These results show the limitations of the law. Copyright 2009 SESPAS. Published by Elsevier Espana. All rights reserved.

  8. UOC Acte de graduació a Barcelona, primera sessió 13/11/2010

    OpenAIRE

    Tubella Casadevall, Imma; Cuní, Josep

    2010-01-01

    El 13 de novembre de 2010, l'Auditori de Barcelona va acollir l'acte de graduació dels estudiants que han culminat els estudis al llarg del curs 2009-2010. Enguany, 5.751 alumnes han aconseguit un títol universitari amb la UOC, xifra que s'inclou a les 26.290 persones que s'han graduat a la UOC des que va néixer la institució, ara fa 16 anys. La gala va ser presidida per la rectora, Imma Tubella, i el padrí de la promoció, el periodista Josep Cuní. Els representants dels graduats i graduades ...

  9. UOC resum acte de graduació a Barcelona 13/11/2010

    OpenAIRE

    Tubella Casadevall, Imma; Cuní, Josep

    2010-01-01

    El 13 de novembre de 2010, l'Auditori de Barcelona va acollir l'acte de graduació dels estudiants que han culminat els estudis al llarg del curs 2009-2010. Enguany, 5.751 alumnes han aconseguit un títol universitari amb la UOC, xifra que s'inclou a les 26.290 persones que s'han graduat a la UOC des que va néixer la institució, ara fa 16 anys. La gala va ser presidida per la rectora, Imma Tubella, i el padrí de la promoció, el periodista Josep Cuní. Els representants dels graduats i graduades ...

  10. Infancia, familias monoparentales e inmigración latinoamericana en Barcelona, España

    Directory of Open Access Journals (Sweden)

    Rosalina Alcalde-Campos

    2013-01-01

    Full Text Available La relación entre pobreza, monoparentalidad e infancia es un hecho constatado en numerosos estudios. Menos exploradas han sido las condiciones de vida de los niños y niñas de familias monoparentales inmigradas. En este artículo presentamos los hallazgos de una investigación cualitativa llevada a cabo en Barcelona entre 2008 y 2009 con 18 familias monoparentales encabezadas por mujeres latinoamericanas migrantes. Describimos el elevado riesgo de pobreza y de exclusión social que sufren estas personas menores y los efectos educativos y sociales que se derivan de sus condiciones de vida en España.

  11. Infancia, familias monoparentales e inmigración latinoamericana en Barcelona, España

    Directory of Open Access Journals (Sweden)

    Iskra Pávez

    2013-03-01

    Full Text Available La relación entre pobreza, monoparentalidad e infancia es un hecho constatado en numerosos estudios. Menos exploradas han sido las condiciones de vida de los niños y niñas de familias monoparentales inmigradas. En este artículo presentamos los hallazgos de una investigación cualitativa llevada a cabo en Barcelona entre 2008 y 2009 con 18 familias monoparentales encabezadas por mujeres latinoamericanas migrantes. Describimos el elevado riesgo de pobreza y de exclusión social que sufren estas personas menores y los efectos educativos y sociales que se derivan de sus condiciones de vida en España.

  12. [Eating habits, sedentary behaviors and overweight and obesity among adolescents in Barcelona (Spain)].

    Science.gov (United States)

    Garcia-Continente, X; Allué, N; Pérez-Giménez, A; Ariza, C; Sánchez-Martínez, F; López, M J; Nebot, M

    2015-07-01

    Breakfast is considered the most important meal of the day in an equilibrated diet. Skipping breakfast has been associated with overweight. This study aimed to describe overweight and obesity among high school students in Barcelona and to analyze their association with eating habits and sedentary behaviors. A cross-sectional study was performed in 2008 on a representative sample of high-school students in Barcelona (Spain). Overweight and obesity were defined using Body Mass Index (BMI), which was calculated from objective measurements. The prevalences of overweight and obesity were determined, and their association with eating habits, sedentary behaviors, and physical activity was analyzed using logistic regression models. A total of 3,089 students were analyzed (52% girls). The prevalence of overweight was 26.1% in boys (6.2% obese) and 20.6% in girls (3.7% obese). In both sexes, overweight was associated with being younger, having breakfast less often, being on a diet, and with a lower frequency of unhealthy food intake. Being on a diet and a lower unhealthy food intake were related to obesity in both sexes. Among boys, obesity was also associated with sedentary behaviors. The results show that overweight and obesity are a serious public health problem and confirm the importance of breakfast to prevent overweight. Moreover, these results allow us to expand our knowledge on the factors associated with overweight and obesity in order to improve current school preventive programs. Copyright © 2014 Asociación Española de Pediatría. Published by Elsevier España, S.L.U. All rights reserved.

  13. EL PROYECTO DE LA OLIMPIADA POPULAR DE BARCELONA (1936, ENTRE COMUNISMO INTERNACIONAL Y REPUBLICANISMO REGIONAL

    Directory of Open Access Journals (Sweden)

    André Gounot

    2005-01-01

    Full Text Available Los archivos del KOMINTERN en el Centro Ruso de Conservación y Estudio de los Documentos sobre la Historia Contemporánea (CRCRHC de Moscú, recientemente abiertos para el estudio científico, nos ofrecen fuentes documentales fundamentales para entender el desarrollo de la Internacional Deportiva Roja (IDR como una de las organizaciones auxiliares del citado KOMINTERN. Las referidas fuentes documentales han aportado nuevas informaciones y datos sobre la creación en España en 1931, con el establecimiento de la 2ª República, de la Federación Cultural y Deportiva Obrera (FCDO, organización que en 1934 se adhiere a la Internacional Deportiva Roja (IDR, siendo el embrión del nacimiento del Comité Catalán pro Deporte Popular que presentaría el proyecto de la Olimpiada Popular de Barcelona de 1936 como alternativa a la Olimpiada de Berlín de 1936 de Hitler. Por otra parte la Internacional Deportiva Roja (IDR creó a finales de 1935 el Comité Internacional para la defensa de la Idea Olímpica, cuyo objetivo era coordinar los movimientos de oposición a los Juegos de Berlín. También la propia Federación Cultural y Deportiva Obrera (FDCO fundó en 1936 el Comité Español de Defensa del Espíritu Olímpico con este mismo fin. La Olimpiada Popular de Barcelona de 1936 permitió entre otras cosas expresar la nueva alianza entre Comunismo y Olimpismo, construida con discursos contradictorios apoyándose en el universalismo, la paz y la igualdad de razas.

  14. La Capella de Música de la Seu de Barcelona en el segle XVIII (1756-1765

    Directory of Open Access Journals (Sweden)

    Pavía i Simó, Josep

    2005-12-01

    Full Text Available This study is a continuation of my published work concerning the history of the Music Chapel in the Barcelona Cathedral during all of the XVII and the first half of the XVIII centuries, and it is faithful to the methodology I have hitherto employed. You will, therefore, come across many of the musicians I have referred to in my previous articles, as well as some new names, plus novel and similar circumstances that enlivened the musical life of the said Cathedral and which were scrutinized by its Chapter. Some points pertaining to certain persons and matters have been left unanswered in this present study, but which I hope to address at a later stage.

    [ca] Aquest treball, mante la mateixa línia metodològica, emprada en els meus treballs publicats sobre la Capella de Música de la Catedral de Barcelona, durant tot el segle XVII i la primera meitat del s. XVIII, deis quals n'és continuació. Hi trobareu, dones, molts musics, dels quals ja se n'ha parlat en els precedents treballs, en trobareu de nous i també circumstàncies, unes noves i d'altres semblants que animaren la vida musical de l'esmentada Catedral i n'eren la preocupació del Capítol. Alguns punts, tocants a certes persones o matèries, queden sense resolució final, al present treball. Espero poder-les oferir, en altra col•laboració posterior.

  15. Barcelona Rocks, a mobile app to learn geology in your city

    Science.gov (United States)

    Geyer, Adelina; Cabrera, Lluis; Alias, Gemma; Aulinas, Meritxell; Becerra, Margarita; Casadellà, Jordi; Clotet, Roger; Delclós, Xavier; Fernández-Turiel, José-Luis; Tarragó, Marta; Travé, Anna

    2016-04-01

    Barcelona Rocks is an application for personal mobile devices suitable for secondary and high school students as well as the general public without a solid background in Earth Sciences. The main objective of this app is to teach Geology using as learning resource our city façades and pavements. Additionally, Barcelona Rocks provides a short explanation about the significance of the appearance of the different rock types at the different historical periods of the city. Although it has been designed as a playful learning resource for secondary school students, the level of knowledge also allows bringing some basic concepts and principles of Earth Sciences to the general public, irrespective of age. This app is intended to provide the degree of interactivity and entertainment required by the different individual users and aims to: (i) Explain the techniques and experiments that allow the user to identify the different rocks, as well as their genesis. (ii) Introduce geology to the youngest users in a more attractive and entertaining way, providing also some information regarding the use of the different ornamental rocks during the different historical periods of the city: roman, medieval, etc. (iii) Provide historical and architectural information of the selected buildings in order to improve the city's historical architectural knowledge of the users. (iv) Show the non-expert public the importance of their country's geology. (v) Develop of outreach and dissemination resources taking advantage of the versatile and potent mobile application format using also the content as support material for science courses, seminars, or social learning events. (vi) Encourage new generations of Earth Scientists (vii) Promote science and scientific culture of the society, integrating culture and innovation as essential for the emergence of new scientific and technological vocations, promoting critical thinking, understanding of the scientific method and the social interest in science

  16. [Second-hand smoke exposure in hospitality venues in Barcelona: measurement of respirable particles].

    Science.gov (United States)

    Villarroel, Nazmy; López, María José; Sánchez-Martínez, Francesca; Fernández, Esteve; Nebot, Manel

    2011-01-01

    To quantify the concentration of respirable particles equal to or smaller than 2.5μm (PM(2.5)) as a marker of second-hand smoke (SHS) exposure in a sample of hospitality venues in Barcelona 2 years after the Spanish smoking law came into effect. We performed a cross-sectional descriptive study from October to December 2007. The study population consisted of 40 hospitality venues in Barcelona selected by a random route sampling, with representation of the different types of smoking regulation included in the law (smoking allowed, smoking ban and venues with smoking areas). SHS levels were quantified by measuring PM(2.5) concentrations, which were measured using a laser photometer (Side Pack AM 510 Personal Aerosol Monitor). The measurements were carried out for 5 minutes outside the venue and for 30 minutes inside the venue. In addition, observational variables related to the characteristics of the venue and signs of tobacco consumption were recorded. The concentration of PM(2.5) in venues where smoking was still allowed was five times higher than that in venues where smoking was banned (182μg/m(3) and 34μg/m(3), respectively) and exceeded the concentration established by the US Environmental Protection Agency (EPA) as harmful (35μg/m(3)). However, in venues where smoking was banned, the concentration was lower than the EPA standard and there were no significant differences with the outdoor PM(2.5) concentration. Two years after the introduction of the Spanish smoking law, SHS exposure in venues where smoking was allowed was q still very high, representing a significant health risk for hospitality workers. Copyright © 2010 SESPAS. Published by Elsevier Espana. All rights reserved.

  17. Patterns of physical activity and associated factors among teenagers from Barcelona (Spain) in 2012.

    Science.gov (United States)

    Ruiz-Trasserra, Alicia; Pérez, Anna; Continente, Xavier; O'Brien, Kerry; Bartroli, Montse; Teixidó-Compaño, Ester; Espelt, Albert

    To estimate the prevalence of moderate and vigorous physical activity (MVPA), as defined by the World Health Organisation (WHO), and associated factors among teenagers from Barcelona in 2012. Cross-sectional survey to assess risk factors in a representative sample of secondary school students (aged 13-16 years, International Standard Classification of Education [ISCED] 2, n=2,162; and 17-18 years, ISCED 3, n=1016) in Barcelona. We estimated MVPA prevalence overall, and for each independent variable and each gender. Poisson regression models with robust variance were fit to examine the factors associated with high-level MVPA, and obtained prevalence ratios (PR) and 95% confidence intervals (95%CI). Only 13% of ISCED 2 and 10% of ISCED 3 students met the WHO physical activity recommendations. This percentage was lower among girls at both academic levels. MVPA was lower among ISCED 3 compared to ISCED 2 students, and among students with a lower socioeconomic status. Physical activity was associated with positive self-perception of the health status (e.g., positive self-perception of health status among ISCED 2 compared to ISCED 3 students: PR=1.31 [95%CI: 1.22-1.41] and 1.61 [95%CI: 1.44-1.81] for boys and girls, respectively]. The percentage of teenagers who met WHO MVPA recommendations was low. Strategies are needed to increase MVPA levels, particularly in older girls, and students from low socioeconomic backgrounds. Copyright © 2016 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.

  18. [Tobacco use by adolescents in Barcelona (Spain) and trends in the last 20 years].

    Science.gov (United States)

    Ariza, Carles; García-Continente, Xavier; Villalbí, Joan Ramon; Sánchez-Martínez, Francesca; Pérez, Anna; Nebot, Manel

    2014-01-01

    Smoking is a preventable cause of early death and the habit starts in adolescence. The aim of this study was to describe tobacco consumption in secondary school students in 2008 and trends in the last 20 years in Barcelona. We analyzed the trend in tobacco consumption by comparing data from 8 surveys carried out between 1987 and 2008 in the 8th (2nd year of Compulsory Secondary Education), 10th (4th year of Compulsory Secondary Education) and 12th (2nd year of Compulsory Secondary Education) years of secondary school. The FRESC questionnaire was used. Data on regular and daily consumption and associated factors in 2008 were gathered and compared with those corresponding to the previous studies. Percentages of annual change were calculated with Joinpoint regression and data were stratified by sex and year of education. In 2008, 6.1% of boys and 4.5% of girls in the 8th year, 15.8% and 20.4% of those in the 10th year, respectively, and 26.1% and 33.1% of those in the 12th year, respectively, were regular smokers. A strong association was noted between regular smoking and cannabis consumption in three school years, as well as with having friends who were smokers and poor school performance. At 15-16 years old, the average annual decrease from 1996 to 2008 was 6.8% in girls and 6.1% in boys. Adolescent smoking has been decreasing in the last few years in Barcelona. There is a strong association between tobacco use and cannabis consumption. Copyright © 2013 SESPAS. Published by Elsevier Espana. All rights reserved.

  19. Trastornos menores de salud en una muestra de estudiantes de la Universidad de Barcelona

    Directory of Open Access Journals (Sweden)

    MT Icart Isern

    Full Text Available Introducción: conocer la prevalencia de algunos trastornos menores de salud (TMS en una muestra de estudiantes de la Universidad de Barcelona (2004-05. Material y métodos: El estudio se realizó en las facultades de Ciencias Económicas, Farmacia, Medicina, Psicología y Químicas y Escuela de Enfermería de la Universidad de Barcelona. Se empleó un diseño observacional, descriptivo y transversal mediante un cuestionario mixto administrada a 600 estudiantes durante el mes de diciembre de 2004. Las variables estudiadas corresponden a los siguientes TMS: insomnio, estreñimiento, cefalea, dolor osteomuscular, tics nerviosos, onicofagia y tricotilomania. Resultados: El sexo femenino representa el 64% de la muestra; la media de edad de los encuestados es de 22,7 (DE: 3,27; IC 95%: 22,43-22,96. Las mujeres acumulan el 67,79% de los 1.245 TMS identificados. Por sexo, se observan diferencias estadísticamente significativas en las prevalencias de cefalea, dolor osteomuscular y tricotilomania que afectan en mayor medida al sexo femenino. La onicofagia (264; 21,20%; IC 95%: 18-24,4 es el más extendido de los TMS, seguido de la cefalea (233; 18,72%; IC 95%: 15,6-21,84. los estudiantes de Psicología presentan el mayor número, seguidos de los de Ciencias Económicas; los que presentan un menor número son los de Farmacia y Químicas. Conclusiones: El sexo femenino presenta la mayor prevalencia de TMS. La onicofagia y la cefalea son los principales TMS identificados en la muestra. Los estudiantes de Psicología acumulan el mayor número de TMS, siendo los que presentan más cefalea, dolor osteomuscular y tricotilomania.

  20. Injury pattern in lethal motorbikes-pedestrian collisions, in the area of Barcelona, Spain.

    Science.gov (United States)

    Rebollo-Soria, M Carmen; Arregui-Dalmases, Carlos; Sánchez-Molina, David; Velázquez-Ameijide, Juan; Galtés, Ignasi

    2016-10-01

    There are several studies about M1 type vehicle-pedestrian collision injury pattern, and based on them, there has been several changes in automobiles for pedestrian protection. However, the lack of sufficient studies about injury pattern in motorbikes-pedestrian collisions leads to a lack of optimization design of these vehicles. The objective of this research is to study the injury pattern of pedestrians involved in collisions with motorized two-wheeled vehicles. A retrospective descriptive study of pedestrian's deaths after collisions with motorcycles in an urban area, like Barcelona was performed. The cases were collected from the Forensic Pathology Service database of the Institute of Legal Medicine of Catalonia. The selected cases were categorized as pedestrian-motorcycle collision, between January 1st, 2005 and December 31st, 2014. Data were collected from the autopsy, medical, and police report. The collected information was then analyzed using Microsoft Excel statistical functions. Traumatic Brain Injury is the main cause of death in pedestrian hit by motorized two-wheeled vehicles (62.85%). The most frequent injury was the subarachnoid hemorrhage, in 71.4% of cases, followed by cerebral contusions and skull base fractures (65.7%). By contrast, pelvic fractures and tibia fractures only appeared in 28.6%. The study characterizes the injury pattern of pedestrians involved in a collision with motorized two-wheeled vehicles in an urban area, like Barcelona, which has been found to be different from other vehicle-pedestrian collisions, with a higher incidence of brain injuries and minor frequency of lower extremities fractures in pelvis, tibia and fibula. Copyright © 2016 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved.

  1. Photocatalytic reactor

    Science.gov (United States)

    Bischoff, Brian L.; Fain, Douglas E.; Stockdale, John A. D.

    1999-01-01

    A photocatalytic reactor for processing selected reactants from a fluid medium comprising at least one permeable photocatalytic membrane having a photocatalytic material. The material forms an area of chemically active sites when illuminated by light at selected wavelengths. When the fluid medium is passed through the illuminated membrane, the reactants are processed at these sites separating the processed fluid from the unprocessed fluid. A light source is provided and a light transmitting means, including an optical fiber, for transmitting light from the light source to the membrane.

  2. Nuclear reactor

    International Nuclear Information System (INIS)

    Anthony, A.J.; Gruber, E.A.

    1979-01-01

    A nuclear reactor with control rods in channels between fuel assemblies wherein the fuel assemblies incorporate guide rods which protrude outwardly into the control rod channels to prevent the control rods from engaging the fuel elements. The guide rods also extend back into the fuel assembly such that they are relatively rigid members. The guide rods are tied to the fuel assembly end or support plates and serve as structural members which are supported independently of the fuel element. Fuel element spacing and support means may be attached to the guide rods. 9 claims

  3. Juntas, tertulias y conspiración en la crisis del régimen isabelino. El caso de la ciudad de Barcelona, 1867-1868

    Directory of Open Access Journals (Sweden)

    Josep Pich i Mitjana

    2004-08-01

    Full Text Available The aim of the present study is the description of the activity and organisation of the revolutionaries in Barcelona in the period preceding the victory of the Spanish Democratic Revolution of 1868. The activities of those opposition groups, and the clandestine revolutionary Committee existing from 1861, are studied through the analysis of A. feliu Codina's memoirs. The outbreak of the revolution in Barcelona, where the committees were mainly neither republicans nor federalists, enhanced the diffusion of the federal republicanism and transformed an initial pronunciamiento into a true democratic revolution, Barcelona becoming the pioneer of the Spanish federal republicanism.

  4. D and DR Reactors

    Data.gov (United States)

    Federal Laboratory Consortium — The world's second full-scale nuclear reactor was the D Reactor at Hanford which was built in the early 1940's and went operational in December of 1944.D Reactor ran...

  5. Reactor core fuel management

    International Nuclear Information System (INIS)

    Silvennoinen, P.

    1976-01-01

    The subject is covered in chapters, entitled: concepts of reactor physics; neutron diffusion; core heat transfer; reactivity; reactor operation; variables of core management; computer code modules; alternative reactor concepts; methods of optimization; general system aspects. (U.K.)

  6. Hybrid adsorptive membrane reactor

    Science.gov (United States)

    Tsotsis, Theodore T [Huntington Beach, CA; Sahimi, Muhammad [Altadena, CA; Fayyaz-Najafi, Babak [Richmond, CA; Harale, Aadesh [Los Angeles, CA; Park, Byoung-Gi [Yeosu, KR; Liu, Paul K. T. [Lafayette Hill, PA

    2011-03-01

    A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.

  7. Reactor container

    International Nuclear Information System (INIS)

    Oikawa, Hirohide; Otonari, Jun-ichiro; Tozaki, Yuka.

    1993-01-01

    Partition walls are disposed between a reactor pressure vessel and a suppression chamber to separate a dry well to an upper portion and a lower portion. A communication pipe is disposed to the partition walls. One end of the communication pipe is opened in an upper portion of the dry well at a position higher than a hole disposed to a bent tube of the suppression chamber. When coolants overflow from a depressurization valve by an erroneous operation of an emergency reactor core cooling device, the coolants accumulate in the upper portion of the dry well. When the pipeline is ruptured at the upper portion of the pressure vessel, only the inside of the pressure vessel and the upper portion of the dry well are submerged in water. In this case, the water level of the coolants does not elevate to the opening of the commuication pipe but they flow into the suppression chamber from the hole disposed to the bent tube. Since the coolants do not flow out to the lower portion of the dry well, important equipments such as control rod drives disposed at the lower portion of the dry wall can be prevented from submerging in water. (I.N.)

  8. Reactor container

    Energy Technology Data Exchange (ETDEWEB)

    Oikawa, Hirohide; Otonari, Jun-ichiro; Tozaki, Yuka.

    1993-09-07

    Partition walls are disposed between a reactor pressure vessel and a suppression chamber to separate a dry well to an upper portion and a lower portion. A communication pipe is disposed to the partition walls. One end of the communication pipe is opened in an upper portion of the dry well at a position higher than a hole disposed to a bent tube of the suppression chamber. When coolants overflow from a depressurization valve by an erroneous operation of an emergency reactor core cooling device, the coolants accumulate in the upper portion of the dry well. When the pipeline is ruptured at the upper portion of the pressure vessel, only the inside of the pressure vessel and the upper portion of the dry well are submerged in water. In this case, the water level of the coolants does not elevate to the opening of the commuication pipe but they flow into the suppression chamber from the hole disposed to the bent tube. Since the coolants do not flow out to the lower portion of the dry well, important equipments such as control rod drives disposed at the lower portion of the dry wall can be prevented from submerging in water. (I.N.).

  9. Reactor monitor

    International Nuclear Information System (INIS)

    Takada, Tamotsu.

    1992-01-01

    The device of the present invention monitors a reactor so that each of the operations for the relocation of fuel assemblies and the withdrawal and the insertion of control rods upon exchange of fuel assemblies and control rods in the reactor. That is, when an operator conducts relocating operation by way of a fuel assembly operation section, the device of the present invention judges whether the operation indication is adequate or not, based on the information of control rod arrangement in a control rod memory section. When the operation indication is wrong, a stop signal is sent to a fuel assembly relocating device. Further, when the operator conducts control rod operation by way of a control rod operation section, the device of the present invention judges in the control rod withdrawal judging section, as to whether the operation indication given by the operator is adequate or not by comparing it with fuel assembly arrangement information. When the operation indication is wrong, a stop signal is sent to control rod drives. With such procedures, increase of nuclear heating upon occurrence of erroneous operation can be prevented. (I.S.)

  10. Beyond the Conventional Argonauts Explanations

    DEFF Research Database (Denmark)

    Rezaei, Shahamak

    The last 10-15 years have witnessed a surge of interest in high-tech transnational entrepreneurship. The research has especially been spurred by the centrality of Indians and Chinese in Silicon Valley as the overlooked innovators. Special attention has been paid to how they used their bifocal...

  11. Nuclear reactor

    International Nuclear Information System (INIS)

    Schabert, H.P.; Weber, R.; Bauer, A.

    1975-01-01

    The refuelling of a PWR power reactor of about 1,200 MWe is performed by a transport pipe in the containment leading from an external to an internal fuel pit. A wagon to transport the fuel elements can go from a vertical loading position to an also vertical deloading position in the inner fuel pit via guide rollers. The necessary horizontal movement is effected by means of a cable line through the transport pipe which is inclined at least 10 0 . Gravity thus helps in the movement to the deloading position. The cable line with winch is fastened outside the containment. Swivelling devices tip the wagon from the horizontal to the vertical position or vice versa. Loading and deloading are done laterally. (TK/LH) [de

  12. NEUTRONIC REACTOR

    Science.gov (United States)

    McGarry, R.J.

    1958-04-22

    Fluid-cooled nuclear reactors of the type that utilize finned uranium fuel elements disposed in coolant channels in a moderater are described. The coolant channels are provided with removable bushings composed of a non- fissionable material. The interior walls of the bushings have a plurality of spaced, longtudinal ribs separated by grooves which receive the fins on the fuel elements. The lands between the grooves are spaced from the fuel elements to form flow passages, and the size of the now passages progressively decreases as the dlstance from the center of the core increases for the purpose of producing a greater cooling effect at the center to maintain a uniform temperature throughout the core.

  13. Nuclear reactor

    International Nuclear Information System (INIS)

    Schweiger, F.; Glahe, E.

    1976-01-01

    In a nuclear reactor of the kind which is charged with spherical reaction elements and in which control rods are arranged to be thrust directly into the charge, each control rod has at least one screw thread on its external surface so that as the rod is thrust into the charge it is caused to rotate and thus make penetration easier. The length of each control rod may have two distinct portions, a latter portion which carries a screw thread and a lead-in portion which is shorter than the latter portion and which may carry a thread of greater pitch than that on the latter portion or may have a number of axially extending ribs instead of a thread

  14. Una aproximación a la segregación digital metropolitana y urbana: las comarcas de la provincia de Barcelona y los distritos de la ciudad de Barcelona en el año 2000

    Directory of Open Access Journals (Sweden)

    Chaparro Mendivelso Jeffer

    2008-12-01

    Full Text Available La segregación digital se refiere a la diferenciación en cuanto al acceso y al uso de las tecnologías digitales de la información y la comunicación (TDIC . Esa diferenciación puede establecerse tanto en términos sociodemográficos como territoriales. El artículo que se presenta es un intento de perfilar la segregación digital en las escalas regional y local, específicamente en las comarcas de la provincia de Barcelona y en los distritos de la ciudad de Barcelona en el año 2000. El uso de información a nivel de hogares permitió constatar territorialmente la existencia de algunas variables sociodemográficas que influyen en la conexión a Internet.

  15. Nuclear reactor neutron shielding

    Science.gov (United States)

    Speaker, Daniel P; Neeley, Gary W; Inman, James B

    2017-09-12

    A nuclear reactor includes a reactor pressure vessel and a nuclear reactor core comprising fissile material disposed in a lower portion of the reactor pressure vessel. The lower portion of the reactor pressure vessel is disposed in a reactor cavity. An annular neutron stop is located at an elevation above the uppermost elevation of the nuclear reactor core. The annular neutron stop comprises neutron absorbing material filling an annular gap between the reactor pressure vessel and the wall of the reactor cavity. The annular neutron stop may comprise an outer neutron stop ring attached to the wall of the reactor cavity, and an inner neutron stop ring attached to the reactor pressure vessel. An excore instrument guide tube penetrates through the annular neutron stop, and a neutron plug comprising neutron absorbing material is disposed in the tube at the penetration through the neutron stop.

  16. The Role of Bullfighting and FC Barcelona in the Emancipation of Catalonia from Spain (El papel de la corrida de toros y FC Barcelona en la emancipación de Cataluña de España

    Directory of Open Access Journals (Sweden)

    John A. TKac

    2015-06-01

    Full Text Available Abstract: This paper looks at the role that bullfighting and FC Barcelona have played in the growing independence movement in Catalonia. This article will discuss nations, the importance of bullfighting and soccer to Iberian cultures, Catalan political parties and their role in the nationalist movement, the vote to prohibit bullfighting and FC Barcelona´s increasing political conscious. I conclude that bullfighting and soccer have been used by political parties and those associated with the nationalist movement to foster feelings of difference with Spain. These feelings have been passed from the top down to the Catalan people and risk alienating those who are not in agreement with the nationalist movement.Resumen: Este trabajo examina el papel que la corrida de toros y el equipo de fútbol FC Barcelona han hecho en el movimiento continuo hacia la independencia en Cataluña. Discute el concepto de la nación, la importancia de las corridas y el fútbol en culturas ibéricas, partidos políticos catalanes y su rol en el voto a favor de la prohibición de las corridas en Cataluña y la evolución de la conciencia política cada vez más evidente de FC Barcelona. Concluyo que los partidos políticos y otros asociados con el movimiento hacia la independencia se han aprovechado de las corridas y el fútbol para destacar diferencias culturales con España. Esta actitud de diferencia se ha trasladado de arriba-abajo al pueblo catalán y el movimiento nacionalista corre el riesgo de alienar a los que no comparten sus creencias.

  17. Polycentricity, Performance and Planning: Concepts, Evidence and Policy in Barcelona, Catalonia

    Directory of Open Access Journals (Sweden)

    Jaume Masip-Tresserra

    2017-11-01

    environmental objectives. It is necessary to conduct a further exploration of the three aforementioned major issues related to (1 the conceptualization of polycentricity, (2 the empirical analysis of the dis(advantages of polycentricity, and (3 how to interpret the relationship between polycentricity in research and polycentricity in policy. That is the key motivation for this thesis: to link the knowledge of polycentric constellations and their economic, social, and environmental effects to planning practice and policy in metropolitan areas. General aims and questions The overarching research goal of this dissertation is to contribute to the debate on polycentricity in the three interrelated issues mentioned above. First, it aims to renew the conceptualization of polycentricity by bringing together two distinct literatures, namely, the literature on intra-urban polycentricity and the literature on inter-urban polycentricity. Second, it aims to empirically substantiate the relationship between polycentricity and performance in metropolitan areas. Third, it aims to understand how the makers of spatial plans have addressed polycentric development and how the assumed benefits of polycentricity can be realized in planning practice. To accomplish these goals, this thesis addresses three general research questions: • How has the conceptualization of polycentric development in spatial plans evolved over time, and what can be learned from this evolution? • How has polycentricity been conceptualized in research, and how can it inform planning practice? • To what extent does polycentricity foster better performance in a metropolitan area, and how can its effects be realized in planning practice? Single case study: the Barcelona metropolitan region The case study of this thesis is the Barcelona metropolitan region. With approximately 5 million people, the Barcelona metropolitan region is the primary urban agglomeration of Catalonia, an autonomous region of 7.5 million inhabitants

  18. A Mediterranean case study of flood evolution: the Metropolitan Area of Barcelona

    Science.gov (United States)

    Llasat, Maria Carmen; Gilabert, Joan; Llasat-Botija, Montserrat; Cortès, Maria; Marcos, Raül; Martín-Vide, Juan Pedro; Turco, Marco; Falcón, Lluis

    2016-04-01

    Flood risk changes in Mediterranean Region integrate multiple factors, some of them related with the hazard (i.e. rainfall intensity), the vulnerability and exposure (i.e. population or assets), feedback processes that affect both hazard and vulnerability (i.e. urbanization of flood prone areas), mitigation and adaptation measures (i.e. rainwater tanks or early warning systems), and the available information used to estimate flood events (i.e. newspapers or gauged data). Flood events in the West Mediterranean region are usually produced as a consequence of very intense and local precipitation, mainly recorded on late summer and autumn that can give place to flash-floods in little torrential rivers (usually non-permanent flows) or urban floods. The Metropolitan Area of Barcelona (AMB), Spain, constitutes a good paradigm of a Mediterranean coast region, with strong urbanization of flood prone areas and high population density in an area crossed by numerous streams. The AMB is constituted by 36 municipalities with a total population above 3.200.000 inhabitants in an extension of 636 km². The major part of the population is concentrated between the Besós River and the Llobregat River, the Littoral Range and the Mediterranean Sea. Although both rivers have experienced catastrophic flood events (i.e. 25 September 1962, 815 deaths; 19-23 September 1971, 19 deaths; October 1987, 8 deaths), the most frequent situation is related with floods in non-permanent streams. Their main impacts are consequence of drainage and runoff problems and can affect both urban and rural areas. This contribution explores the evolution of land uses, population and precipitation from the middle of the 20th century until now, and how these changes have affected (or not), the flood risk. To do it, daily and sub-daily rainfall series, discharge series for the Llobregat and Besós Rivers, population data and land use changes have been analyzed. Future precipitation projections provided by an

  19. Long term effects of traffic noise on mortality in the city of Barcelona, 2004-2007.

    Science.gov (United States)

    Barceló, Maria Antònia; Varga, Diego; Tobias, Aurelio; Diaz, Julio; Linares, Cristina; Saez, Marc

    2016-05-01

    Numerous studies showing statistically significant associations between environmental noise and adverse health effects already exist for short-term (over one day at most) and long-term (over a year or more) noise exposure, both for morbidity and (albeit to a lesser extent) mortality. Recently, several studies have shown this association to be independent from confounders, mainly those of air pollutants. However, what has not been addressed is the problem of misalignment (i.e. the exposure data locations and health outcomes have different spatial locations). Without any explicit control of such misalignment inference is seriously compromised. Our objective is to assess the long-term effects of traffic noise on mortality in the city of Barcelona (Spain) during 2004-2007. We take into account the control of confounding, for both air pollution and socioeconomic factors at a contextual level and, in particular, we explicitly address the problem of misalignment. We employed a case-control design with individual data. We used deaths resulting from myocardial infarction, hypertension, or Type II diabetes mellitus in Barcelona between 2004 and 2007 as cases for the study, while for controls we used deaths (likewise in Barcelona and over the same period of time) resulting from AIDS or external causes (e.g. accidental falls, accidental poisoning by psychotropic drugs, drugs of abuse, suicide and self-harm, or injuries resulting from motor vehicle accidents). The controls were matched with the cases by sex and age. We used the annual average equivalent A-weighted sound pressure levels for daytime (7-21h), evening-time (21-23h) and night-time (23-7h), and controlled for the following confounders: i) air pollutants (NO2, PM10 and benzene), ii) material deprivation (at a census tract level) and iii) land use and other spatial variables. We explicitly controlled for heterogeneity (uneven distribution of both response and environmental exposures within an area), spatial dependency

  20. La casa de Bernat de Sarrià, canonge de la Seu de Barcelona, vers 1300

    Directory of Open Access Journals (Sweden)

    Batlle i Gallart, Carme

    1998-12-01

    Full Text Available This article studies the will and inventory of goods left by a rich canon, named Bernat of Sarria, who belonged to a noble family from the surroundings of Barcelona, where his house was built. The canon had a cousin —also named Bernat—, who was a king's counsellor and a very influential person at the court. The inventory is dated the day after the canon was dead, on the 26th July 1302. It contains a large number of clothes, furniture and coins, but neither books nor weapons. The canon also possessed several servants and three slaves, fourteen decorated silver cups, twelve rings and some landed properties in Premià and Alella (villages not far from Barcelona, that produced crops of wheat, barley, wine and oil. A benefice in memory of the date of his death was constituted, with his fortune, at Saint Michael's chapel of Barcelona cathedral. This benefice was devoted to the poor and especially to nourish, for ever, a poor person who was dependent of the cathedral's Almoina. The canon destined for these two pious institutions the amount he obtained of selling his slaves.[fr] Étude du testament et de l'inventaire des propriétés d'un riche chanoine. Bernat de Sarrià, appartenant à une famille de la petite noblesse des alentours de Barcelone, où se trouvait leur maison fortifiée. Un chevalier, cousin et avec le même nom du chanoine, était conseiller du roi et un grand personnage à la cour à cette époque. L'inventaire, daté du lendemain de la mort du chanoine, le 26 juillet 1302, est très riche en robes, meubles, monnaies, mais pas du tout en livres ou armes. Le chanoine possède trois esclaves, en plus des servants, catorze coupes d'argent, plus ou moins décorées avec des émaux et des incisions, une douzaine d'anneaux, et aussi des propriétés foncières à Premia et à Alella, sur la côte nord de Barcelone, d'où il tire le blé, l'orge, le vin et l'huile gardés dans son grenier et son cellier. Sa fortune est destinée à un b

  1. Structural characteristics of internally mixed carbonaceous aggregates from Barcelona (Spain) during DAURE winter campaign

    Science.gov (United States)

    Coz, Esther; Casuccio, Gary S.; Robinson, Allen L.; Moreno, Teresa; Mohr, Claudia; Prevot, Andre S. H.; Artíñano, Begoña.

    2010-05-01

    Particle structure, understood as the characterization of size, morphology, texture and the spatial distribution of the different compounds at an individual particle level, influences carbonaceous aggregates behavior in the atmosphere and the respiratory system. Additionally, the absorption and scattering of light is modified by the particle structure and also influences water absorption and water vapor nucleation and, hence cloud formation, residence time in the atmosphere and removal processes. Two factors seem determinant in these processes: quantity of scattering material adsorbed onto the light absorbing core during the residence in the atmosphere and subsequent aging, and the spatial distribution of this condensed matter (commonly discussed as internally/externally mixtures). Morning, noon, afternoon, and evening samples were collected for electron microscopy analyses during 3 consecutive days during an atmospheric episode of thermal inversion in February 2009 in an urban background area within the city of Barcelona. The main goal of this study was to quantify the variations in morphology and state of mixture of carbonaceous soot-like aggregate structures observed during different times of the day. The study was part of the winter campaign: "Determination of the sources of atmospheric Aerosols in Urban and Rural Environments in the western Mediterranean" (DAURE, February/March 2009). The analysis of the aggregate structure was conducted by digital image analysis of several thousand particles to determine variations on size, shape and texture by means of several different mathematical descriptors such as aspect ratio/elongation, compactness and roughness through fractal dimension analysis, textural energy and entropy. Results indicate that carbon aggregates were mostly within 200-400 nm of geometric size, with slightly smaller sizes during time intervals associated to traffic peaks compared to the daily average. The morphological parameters obtained for these

  2. Hypogravity Research and Educational Parabolic Flight Activities Conducted in Barcelona: a new Hub of Innovation in Europe

    Science.gov (United States)

    Perez-Poch, Antoni; González, Daniel Ventura; López, David

    2016-12-01

    We report on different research and educational activities related to parabolic flights conducted in Barcelona since 2008. We use a CAP10B single-engine aerobatic aircraft flying out of Sabadell Airport and operating in visual flight conditions providing up to 8 seconds of hypogravity for each parabola. Aside from biomedical experiments being conducted, different student teams have flown in parabolic flights in the framework of the international contest `Barcelona Zero-G Challenge', and have published their results in relevant symposiums and scientific journals. The platform can certainly be a good testbed for a proof-of-concept before accessing other microgravity platforms, and has proved to be excellent for motivational student campaigns.

  3. Los frescos góticos lineales de la iglesia de Sant Valentí de les Cabanyes (Barcelona

    Directory of Open Access Journals (Sweden)

    María Gracia Salvà Picó

    1992-01-01

    Full Text Available La pequeña iglesia de Sant Valenti se halla en el término municipal de Les Cabanyes, muy cerca de Vilafranca del Penedes (Barcelona. El mal estado en que se encontraba el edificio requería una inmediata restauración, de la que se hizo cargo el Servicio de Patrimonio Arquitectónico de la Diputación de Barcelona. Siguiendo la norma de dicho Servicio, antes de la intervención arquitectónica se llevó a cabo una exhaustiva investigación histórica (dirigida por el doctor Alberto López Mullor que comprendió una excavación arqueológica, un estudio documental y un análisis artístico. A nosotros nos correspondió el estudio de las pinturas murales que cubrían buena parte del templo.

  4. The Business of Musical Scores in Barcelona between 1792 and 1834: From Antonio Chueca to Francisco Bernareggi

    Directory of Open Access Journals (Sweden)

    Oriol Brugarolas Bonet

    2017-01-01

    Full Text Available The data presented in this article is an initial contribution to the study of musical score business in Barcelona between 1792 and 1834. It includes information about the places where printed and handwritten musical scores could be purchased as well as about the people involved in this business (booksellers, instrument makers, musicians, copyists and small business owners not specialised in music. It also gives specifics about the commercial system through which the purchases were made (direct sales, subscription, hire, exchange, batches, in notebooks or through music newspapers, the repertoire and, in some cases, the price of the musical score. The intensity of the musical score business, particularly from 1814, once the War of Independence had ended, is a clear sign of the high development of the activity and the musical culture of Barcelona, and demonstrates that Spain formed part of a European distribution network for musical scores.

  5. Modernist architecture in Barcelona reveals a new trace fossil from the Miocene of Montjuïc (NE Spain)

    International Nuclear Information System (INIS)

    Belaústegui, Z.; Belaústegui, A.

    2017-01-01

    A new ichnotaxon, Lapillitubus montjuichensis n. i gen. n. isp., is described from the middle Miocene (Serravallian) of Montjuïc mountain (Barcelona, northeastern Spain). This ichnotaxon consists of a horizontal to vertical, cylindrical burrow with an agglutinated lining exclusively composed of lithoclasts. Lapillitubus montjuichensis is interpreted as the result of the burrowing activity of a deposit- or suspension-feeding annelid worm. This new ichnotaxon extends the record of the informal group known as clast-armored or agglutinated trace fossils. In addition, since part of its type material is located in the blocks that make up the façades of several modernist buildings in the city of Barcelona, this new ichnotaxon highlights the importance of fossils in urban settings for those cases in which natural outcrops are reduced, restricted or even missing.

  6. Anatomía de la dispersión urbana en Barcelona

    Directory of Open Access Journals (Sweden)

    Iván Muñiz

    2013-01-01

    Full Text Available No existe una definición comúnmente aceptada de dispersión urbana (urban sprawl, de modo que la investigación aplicada ha trabajado con diferentes indicadores que pretenden a su vez capturar los distintos significados con que se ha dotado al término. En este trabajo se mide cómo ha evolucionado la dispersión de la población y del empleo de la Región Metropolitana de Barcelona (RMB entre 1986 y 2001. Las dimensiones exploradas se dividen en dos grupos: i forma urbana (desconcentración, baja densidad y discontinuidad y ii estructura urbana. A diferencia de algunos trabajos donde el policentrismo y el crecimiento lineal se presentan como dos formas de dispersión, en nuestro caso contraponemos la idea de expansión urbana estructurada (lineal o policéntrica con la de expansión urbana desestructurada (amorfa, caótica o aleatoria, equiparando esta última con la cuarta dimensión de la dispersión. Los resultados obtenidos indican que la población y el empleo de la RMB se han descentralizado de forma desconcentrada y la densidad residencial se ha reducido. Sin embargo, la RMB no ha crecido de forma discontinua ni desestructurada, sino todo lo contrario.There is no commonly accepted definition of urban sprawl, and therefore applied research has worked with different indicators aiming to grasp the diverse meanings assigned to the term. This study measures how the dispersion of population and employment in the Barcelona Metropolitan Region (BMR developed between 1986 and 2001. The dimensions that were investigated are divided into two groups. The first one involves dimensions of urban form (decentralization, low density and discontinuity, and the second, of urban structure. As opposed to some studies, where polycentrism and linear growth are presented as two forms of sprawl, in our case we contrast the idea of structured urban expansion (linear or poly-centric with de structured urban expansion (amorphous, chaotic or random, identifying

  7. The ecodesign and planning of sustainable neighbourhoods: the Vallbona case study (Barcelona

    Directory of Open Access Journals (Sweden)

    Farreny, R.

    2011-10-01

    Full Text Available Global sustainability is increasingly an issue of urban sustainability, being essential to encourage more benign trajectories of urbanisation. For this, there is need for a framework that could aid in the process of designing and redesigning (retrofitting cities. The aim of this paper is to present and describe the methodology of urban ecodesign, which is characterized by a systematic incorporation of environmental life cycle considerations into the design of urban systems. The paper presents a case study of neighbourhood ecodesign from the city of Barcelona (Vallbona neighbourhood. This practical experience shows that the inclusion of sustainability criteria at an early stage of the design and planning of urban systems is the best strategy for environmental protection.In addition; a methodological framework is described in order to provide planners with a structured way of designing urban settlements so as to move towards sustainable urban environments.

    La sostenibilidad global es cada vez más un tema de sostenibilidad urbana. Por este motivo, es necesario un marco de trabajo que pueda ayudar en el proceso de diseño y rediseño (rehabilitación de nuestras ciudades. El objetivo de este trabajo es presentar y describir la metodología de ecodiseño adaptada a los entornos urbanos, la cual se caracteriza por la incorporación sistemática de las consideraciones ambientales a lo largo de su ciclo de vida. El documento presenta un caso de estudio de ecodiseño del barrio de Vallbona (Barcelona. Esta experiencia demuestra que la inclusión de criterios de sostenibilidad en las etapas iniciales de diseño y planificación de los sistemas urbanos es la mejor estrategia para la prevención ambiental. Además, se presenta un marco metodológico con el fin de proporcionar a los planificadores una forma estructurada de diseño de los asentamientos urbanos que les permita avanzar hacia entornos urbanos más sostenibles.

  8. ¿Participar para transformar? La experiencia de los presupuestos participativos en la provincia de Barcelona

    Directory of Open Access Journals (Sweden)

    Ismael Blanco Fillola

    2011-05-01

    Full Text Available ¿Qué cabe esperar de los procesos de participación ciudadana en las políticas públicas locales?, ¿Es razonable esperar transformaciones políticas significativas? En este artículo se identifican aquellas condiciones que, a nivel teórico, podemos prever que determinen la capacidad transformadora de la participación ciudadana. Esta discusión teórica da lugar a un marco de evaluación de las prácticas de participación que se aplica al análisis de las 11 experiencias vigentes de presupuestos participativos en la provincia de Barcelona. El análisis pone en evidencia los límites de este tipo de prácticas de participación, los cuales están relacionados con tres factores principales: su posición institucional periférica; el escaso margen de decisión que se concede a la ciudadanía; y la escasa movilización social. Sin embargo, los casos analizados obtienen buenos resultados en dos aspectos importantes: el impacto de las propuestas ciudadanas en la toma de decisiones públicas y la transformación de las actitudes políticas, técnicas y ciudadanas hacia la participación. El marco de evaluación propuesto nos ayuda a identificar ámbitos críticos de mejora de los procesos participativos y de fortalecimiento de su capacidad transformadora. What can we expect from citizen participation processes in local policymaking? Is it reasonable to expect significant political transformations? In this article, we identify the conditions that theoretically determine the transformation capacity of citizen participation. Such theoretical discussion gives place to a framework for the assessment of participative practices, which we use to analyse 11 cases of participatory budgeting in the province of Barcelona. The analysis puts in evidence the limits of this kind of participative practices, which are linked to three main factors: their peripheral institutional position; the scarce decision margin that is given to the citizens; and the lack of

  9. Use of electronic cigarettes in public and private settings in Barcelona (Spain).

    Science.gov (United States)

    Matilla-Santander, Nuria; Fu, Marcela; Ballbè, Montse; Bunch, Kailey; Lidón-Moyano, Cristina; Martín-Sánchez, Juan Carlos; Fernández, Esteve; Martínez-Sánchez, Jose M

    2017-10-01

    To describe the prevalence of e-cigarette users who use them in selected indoor public and workplaces, and private venues in Barcelona (Spain) in 2015. This is a cross-sectional study of a sample of e-cigarette users (≥ 18 years) from Barcelona (n = 600). We calculated the proportion of e-cigarette users who used the device in public and private settings (in the last 30 days). We fit multivariate logistic regression models adjusted for sex and age to calculate the odds ratios (OR) with their 95% confidence intervals (CI) of e-cigarette use by socio-demographic factors, dual use and nicotine-containing e-cigarettes. The highest proportion of e-cigarette users who used them in public places was found at restaurants or bars (69.4%) and nightclubs or pubs (55.4%). Also being current conventional tobacco smokers (dual users) was significantly associated with lower use of e-cigarettes in workplaces (OR = 0.61, 95%CI:0.41-0.91), restaurants (OR = 0.66, 95%CI:0.45-0.97) and nightclubs (OR = 0.56, 95%CI:0.37-0.86). Moreover, being a nicotine-containing e-cigarette user was associated with higher odds of using the device in workplaces (OR = 2.01, 95%CI:1.34-3.01), and lower odds of using it in nightclubs (OR = 0.56, 95%CI:0.39-0.82). 96.8% of the included e-cigarette users declared to use the device at home. Being a current tobacco smoker was associated with increased odds of using e-cigarettes at home (OR = 3.17, 95%CI:1.22-8.22). E-cigarette use in private settings and in public settings where their use is not regulated by law is high. Therefore, the public health administration in Spain should consider expanding the prohibition of e-cigarette use to indoor public places and should take into account the possibility of exposure to aerosol from e-cigarettes. Copyright © 2017 Elsevier Inc. All rights reserved.

  10. MANCHESTER UNITED, INTERNAZIONALE MILANO AND FC BARCELONA – WHAT´S DIFFERENT?

    Directory of Open Access Journals (Sweden)

    Hugo Sarmento

    2014-06-01

    Full Text Available Introduction: Although football is considered a universal language, there are particularities that characterize the way it is practiced in several countries. Overall, the style of English football is known as “Kick and Rush”, the Italian as “Catenaccio”, and the Spanish as “Fúria Española”. This study aims to understand which aspects in the characterization of playing styles of the different teams (Manchester United, Internazionale Milano and Barcelona are the most important for coaches. Methods: We chose 8 expert high-performance Portuguese first league football coaches (Coach 1 to 8 with a professional experience (as first coach ranging from 2 to 30 years (14.9 ± 8.6 years. Semi-structured interviews were carried out and the data analyzed trough content analysis using the software QSR NVivo 9. Results and discussion: The data were grouped in four mainly categories: i game culture/identity (n=18; ii strategical-Tatical factors (n=17; iii player characteristics (n=14; iv coach philosophy (n=14. When analyzing the specific characteristics of the three teams, the coaches mainly referred to aspects related to a playing/identity culture of each team that is influenced by their history, their tradition and a set of values underlying the different clubs. Our coaches described each team’s differences based on strategic and tactical aspects. Overall, all coaches recognized the quality and merit with which Barcelona plays, basing their views on a ball possession that is very difficult to equal by any other team in the world. In contrast, Manchester United plays in a way where strong ball possession is primary, but also their ability to play quickly and offensively, through a more "direct" playing style. Finally, Inter Milan’s style is defined essentially by their defensive tactical rigor and the capacity to develop effective offensive sequences of quick attacks and counterattacks. The players that form these teams are only one element

  11. Acidentes de trabalho em Barcelona (Espanha, no período de 1992-1993

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    Rosana F. Sampaio

    1998-08-01

    Full Text Available INTRODUÇÃO: As estatísticas dos acidentes de trabalho, como qualquer outro sistema de notificação, devem servir de base para determinar prioridades e decidir quais medidas preventivas devem ser adotadas. Neste contexto, o objetivo do estudo é aprofundar a análise dos acidentes de trabalho através da utilização de técnicas estatísticas descritivas que permitam estabelecer a relação entre o número de acidentes de trabalho ocorridos em Barcelona (Espanha e as variáveis tipo de acidente, setor econômico, tamanho da empresa e tipo de contrato. MÉTODO: Como fonte de dados foi utilizado o sistema de notificação de acidentes graves e mortais ocorridos na cidade de Barcelona (Espanha, entre 1992 e 1993. Foram examinados 848 registros de acidentes de trabalho em trabalhadores do sexo masculino e a partir desses dados efetuou-se uma análise mediante modelos log-lineares. RESULTADOS E CONCLUSÕES: Os resultados evidenciam que os acidentes traumáticos e o setor de construção têm uma associação positiva, verificada, da mesma forma, entre os acidentes de trânsito e o setor de serviços. Os acidentes traumáticos e de trânsito apresentaram uma associação com as pequenas empresas e os acidentes não traumáticos demonstraram associar-se com as grandes empresas. Verificou-se, ainda, associação entre os trabalhadores temporais e o setor da construção frente aos trabalhadores com contrato fixo, em que se constatou uma associação com os setores de indústria e de serviços. Foi verificada associação positiva entre os acidentes ocorridos com os trabalhadores temporais e as pequenas e médias empresas.

  12. Pabellón de exposiciones del lNI Barcelona

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    Paradinas, Juan

    1975-02-01

    Full Text Available Designed to exhibit the activities of the Organization, the exhibition hall is situated within the area of the Official and International Exhibition in Barcelona. It occupies a site of 3,000 m2. It consists of two floors, with a totally built surface of 3,416 m2 and the criteria that have been followed are: to plan and construct a building with a clear function; flexible adaptability; elegant in its aesthetic look, and economic to construct and maintain. The hall has different zones for permanent exhibitions and temporary exhibitions; offices, movie hall. W.Cs., bar, closets, information computers, telephones and basement-storage- room, with direct entry for heavy vehicles. The characteristic feature of the hall is that is is constructed of poststressed unfaced concrete, composed of seven columns and girders, of 1.60 m in diameter, of a 7 m height and spaced at a distance of 40 m from each other.Destinado a exponer las actividades del Organismo, está emplazado en el recinto de la Feria Oficial e Internacional de Muestras de Barcelona. Ocupa un solar de 3.000 m2. Consta de dos plantas, con una superficie construida total de 3.416 m2, entre las dos, y los criterios seguidos han sido: proyectar y construir un edificio claro en su funcionamiento; flexible en su adaptabilidad; trascendente en su aspecto estético, y económico en su construcción y en su conservación. Dispone de ámbitos diferentes para exposiciones permanentes y monográficas; oficinas, sala de proyección, servicios, bar, aseos, información, ordenadores, teléfonos y sótano-almacén, con entrada directa para vehículos pesados. Es característica la estructura de hormigón postesado visto, compuesta por siete pórticos de sección circular, de 1,60 m de diámetro, en vigas y pilares, con luz de 40 m y unos 7 m de altura, situados a 6 m entre ejes.

  13. Department of reactor technology

    International Nuclear Information System (INIS)

    1980-01-01

    The activities of the Department of Reactor Technology at Risoe during 1979 are described. The work is presented in five chapters: Reactor Engineering, Reactor Physics and Dynamics, Heat Transfer and Hydraulics, The DR 1 Reactor, and Non-Nuclear Activities. A list of the staff and of publications is included. (author)

  14. FBR type reactor

    International Nuclear Information System (INIS)

    Kimura, Kimitaka; Fukuie, Ken; Iijima, Tooru; Shimpo, Masakazu.

    1994-01-01

    In an FBR type reactor for exchanging fuels by pulling up reactor core upper mechanisms, a connection mechanism is disposed for connecting the top of the reactor core and the lower end of the reactor core upper mechanisms. In addition, a cylindrical body is disposed surrounding the reactor core upper mechanisms, and a support member is disposed to the cylindrical body for supporting an intermediate portion of the reactor core upper mechanisms. Then, the lower end of the reactor core upper mechanisms is connected to the top of the reactor core. Same displacements are caused to both of them upon occurrence of earthquakes and, as a result, it is possible to eliminate mutual horizontal displacement between a control rod guide hole of the reactor core upper mechanisms and a control rod insertion hole of the reactor core. In addition, since the intermediate portion of the reactor core upper mechanisms is supported by the support member disposed to the cylindrical body surrounding the reactor core upper mechanisms, deformation caused to the lower end of the reactor core upper mechanisms is reduced, so that the mutual horizontal displacement with respect to the control rod insertion hole of the reactor core can be reduced. As a result, performance of control rod insertion upon occurrence of the earthquakes is improved, so that reactor shutdown is conducted more reliably to improve reactor safety. (N.H.)

  15. Politicas públicas de salud mental y migración latina en barcelona y génova

    OpenAIRE

    Brigidi, Serena

    2009-01-01

    I present an ethnography conducted in mental health centres and also in Emergency Department in Barcelona and Genoa. The research focuses on migrant patients from South America and socio-health professionals. Initially my objective was to develop en ethnography of health services where I conducted my field-work, to observe the main subjects of study such as institutions, their functioning and specific legislation regulating access to public systems health in Spain and Italy. Despite the relev...

  16. Entrevista al Dr. Enoch Albertí, degà de la Facultat de Dret de la Universitat de Barcelona

    Directory of Open Access Journals (Sweden)

    OSPDH - UB

    2012-03-01

    Full Text Available Entrevista realitzada en data 29 de novembre de 20111 al Sr. Enoch Albertí, degà de laFacultat de Dret (UB des de març de 2008; és Catedràtic de Dret Constitucional de la Universitat de Barcelona des de 1992 i Director del Grup de Recerca Consolidat Grup d’Estudis Constitucionals i Europeus, reconegut per la Generalitat de Catalunya.

  17. Risk perception of sexually transmitted infections and HIV in Nigerian commercial sex workers in Barcelona: a qualitative study

    Science.gov (United States)

    Coma Auli, Núria; Mejía-Lancheros, Cília; Berenguera, Anna; Pujol-Ribera, Enriqueta

    2015-01-01

    Objective This study aimed to determine in detail the risk perception of sexually transmitted infections (STIs) and HIV, and the contextual circumstances, in Nigerian commercial sex workers (CSWs) in Barcelona. Design A qualitative study with a phenomenological approach. Setting Raval area in Barcelona. Participants 8 CSWs working in Barcelona. Methods A phenomenological study was carried out with Nigerian CSWs in Barcelona. Sampling was theoretical, taking into account: different age ranges; women with and without a partner; women with and without children; and women participating or not in STI/HIV-prevention workshops. Information was obtained by means of eight semistructured individual interviews. An interpretative content analysis was conducted by four analysts. Results Illegal immigrant status, educational level, financial situation and work, and cultural context had mixed effects on CSW knowledge of, exposure to, and prevention and treatment of STI and HIV. CSWs were aware of the higher risk of STI associated with their occupation. They identified condoms as the best preventive method and used them during intercourse with clients. They also implemented other preventive behaviours such as personal hygiene after intercourse. Control of sexual services provided, health education and healthcare services had a positive effect on decreasing exposure and better management of STI/HIV. Conclusions Nigerian CSWs are a vulnerable group because of their poor socioeconomic status. The perception of risk in this group and their preventive behaviours are based on personal determinants, beliefs and experiences from their home country and influences from the host country. Interventions aimed at CSWs must address knowledge gaps, risk behaviours and structural elements. PMID:26078307

  18. The impact of regulatory approaches targeting collaborative economy in the tourism accommodation sector::Barcelona, Berlin, Amsterdam and Paris

    OpenAIRE

    Dredge, Dianne; Gyimóthy, Szilvia; Birkbak, Andreas; Jensen, Torben Elgaard; Madsen, Anders Koed

    2016-01-01

    This paper has been commissioned by the European Commission’s DG GROWTH to examine the impact of regulatory approaches targeting collaborative economy in the tourism accommodation sector in the cities of Barcelona, Berlin, Amsterdam and Paris. In relation to tourism, the growth of the collaborative economy peer-to-peer accommodation sector has significant impacts for traditional tourism industry structures and relationships. The growth of the collaborative economy peer-to-peer accommodation m...

  19. A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

    Science.gov (United States)

    Vázquez-Suñé, Enric; Ángel Marazuela, Miguel; Velasco, Violeta; Diviu, Marc; Pérez-Estaún, Andrés; Álvarez-Marrón, Joaquina

    2016-09-01

    The overdevelopment of cities since the industrial revolution has shown the need to incorporate a sound geological knowledge in the management of required subsurface infrastructures and in the assessment of increasingly needed groundwater resources. Additionally, the scarcity of outcrops and the technical difficulty to conduct underground exploration in urban areas highlights the importance of implementing efficient management plans that deal with the legacy of heterogeneous subsurface information. To deal with these difficulties, a methodology has been proposed to integrate all the available spatio-temporal data into a comprehensive spatial database and a set of tools that facilitates the analysis and processing of the existing and newly added data for the city of Barcelona (NE Spain). Here we present the resulting actual subsurface 3-D geological model that incorporates and articulates all the information stored in the database. The methodology applied to Barcelona benefited from a good collaboration between administrative bodies and researchers that enabled the realization of a comprehensive geological database despite logistic difficulties. Currently, the public administration and also private sectors both benefit from the geological understanding acquired in the city of Barcelona, for example, when preparing the hydrogeological models used in groundwater assessment plans. The methodology further facilitates the continuous incorporation of new data in the implementation and sustainable management of urban groundwater, and also contributes to significantly reducing the costs of new infrastructures.

  20. Viejos problemas y nuevos vecinos. Consecuencias de una gran reforma urbana en el barrio del Raval, Barcelona

    Directory of Open Access Journals (Sweden)

    Miquel Fernández González

    2016-05-01

    Full Text Available El barrio del Raval de Barcelona, conocido anteriormente como Distrito V y asociado a la mitificada sordidez del Barrio Chino (uno de los más populares barrios rojos de Europa, se encuentra actualmente en una fase terminal de su reforma urbanística. Esta se inició en 1988 a rebufo de la elección de Barcelona como sede de los Juegos Olímpicos de 1992. Arrancando el presente siglo, se implementó la última intervención urbanística sobre el barrio, concretamente sobre la zona de estudio, la conocida como Illa Robador. La calle d'en Robador ha sido hasta época muy reciente -y probablemente aún lo siga siendo- el nuevo epicentro y quizás el último bastión del Barrio Chino. El mito y la reforma urbanística se convocan en la etnografía que aquí se presenta. Se ha querido levantar acta de los encuentros y encontronazos entre «viejos vecinos», que han sobrevivido a toda clase de mistificaciones y estigmatizaciones, y «nuevos vecinos» atraídos por la posibilidad de vivir en un lugar céntrico, en el nuevo distrito cultural de Barcelona. Se concluye interpretando estos conflictos a la luz de lo que algunos autores llaman un nuevo colonialismo urbano.

  1. Fast breeder reactors

    International Nuclear Information System (INIS)

    Heinzel, V.

    1975-01-01

    The author gives a survey of 'fast breeder reactors'. In detail the process of breeding, the reasons for the development of fast breeders, the possible breeder reactors, the design criteria, fuels, cladding, coolant, and safety aspects are reported on. Design data of some experimental reactors already in operation are summarized in stabular form. 300 MWe Prototype-Reactors SNR-300 and PFR are explained in detail and data of KWU helium-cooled fast breeder reactors are given. (HR) [de

  2. Determining Reactor Neutrino Flux

    OpenAIRE

    Cao, Jun

    2011-01-01

    Flux is an important source of uncertainties for a reactor neutrino experiment. It is determined from thermal power measurements, reactor core simulation, and knowledge of neutrino spectra of fuel isotopes. Past reactor neutrino experiments have determined the flux to (2-3)% precision. Precision measurements of mixing angle $\\theta_{13}$ by reactor neutrino experiments in the coming years will use near-far detector configurations. Most uncertainties from reactor will be canceled out. Understa...

  3. Nuclear reactor coolant channels

    International Nuclear Information System (INIS)

    Macbeth, R.V.

    1978-01-01

    A nuclear reactor coolant channel is described that is suitable for sub-cooled reactors as in pressurised water reactors as well as for bulk boiling, as in boiling water reactors and steam generating nuclear reactors. The arrangement aims to improve heat transfer between the fuel elements and the coolant. Full constructional details are given. See also other similar patents by the author. (U.K.)

  4. Nuclear reactor

    International Nuclear Information System (INIS)

    Irion, L.; Tautz, J.; Ulrych, G.

    1976-01-01

    This additional patent complements the arrangement of non-return valves to prevent loss of cooling water on fracture of external tubes in the main coolant circuit (according to PS 24 24 427.7) by ensuring that the easily movable valves only operate in case of a fault, but do not flutter in operation, because the direction of flow is not the same at each location where they are installed. The remedy for this undesirable effect consists of allocating 1 non-return valve unit with 5 to 10 valves to each (of several) ducts for the cooling water intake. These units are installed in the annular space between the reactor vessel and the pressure vessel below the inlet of the ducts. Due to flow guidance surfaces in the same space, the incoming cooling water is deflected downwards and as the guiding surfaces are closed at the sides, must pass parallel to the valves of the non-return valve unit. On fracture of the external cooling water inlet pipe concerned, all valves of this unit close due to reversal of flow on the outlet side. (TK) [de

  5. Reactor container

    International Nuclear Information System (INIS)

    Kagawa, Tatsuo; Yanai, Ryoichi.

    1976-01-01

    Object: To provide a reactor container which is free from water shock action or condensing vibrations and cannot be readily broken by a missile from a pump impeller, pipe whipping, steam jet reaction, etc., and which also quickly condenses issuing steam and possesses a large vibration-proof strength. Structure: A high pressure containment vessel accommodating a pressure container includes a plurality of pressurized water tanks arranged along its inner periphery, and a pneumatic valve is provided in a lower portion of each of these pressurized water tanks. If an accident occurs, vapor is caused to issue from the pressure container into the vessel. When a certain value is reached, the pneumatic valves are opened, whereby the gas within the pressurized water tanks causes pressurized water to flow through the pipe and be ejected from spray nozzles to cause condensation of water within the vessel. Further, water of a pool within the container is circulated to allow heat release to the outside. (Horiuchi, T.)

  6. La satisfacción de los clientes de los centros deportivos municipales de Barcelona

    Directory of Open Access Journals (Sweden)

    Amal Elasri Ejjaberi

    2015-03-01

    Full Text Available El objetivo de este trabajo es identificar y analizar las variables que más influyen en la satisfacción del cliente en los centros deportivos de Barcelona. Los datos fueron recogidos en una encuesta entre los clientes actuales de centros deportivos municipales. Un análisis factorial aplicado a esta información revela cinco dimensiones que subyacen a los múltiples componentes de la oferta de servicios en dichas instalaciones: su calidad, los recursos humanos, la comunicación, el entorno social y la relación calidad-precio. Las variables generadas fueron incorporadas a un modelo de regresión múltiple en el que la variable dependiente fue la satisfacción del cliente. De acuerdo con los resultados las mujeres y los usuarios mayores de 60 años valoran más positivamente el servicio recibido, mientras que a mayor nivel de estudios, más exigentes son los clientes. Finalmente, un gerente debe prestar atención en primer lugar a la calidad de las instalaciones seguido de la comunicación, los recursos humanos, la relación calidad precio y el entorno social, por este orden.

  7. Sustainability Commitment, New Competitors’ Presence, and Hotel Performance: The Hotel Industry in Barcelona

    Directory of Open Access Journals (Sweden)

    Juan Pedro Aznar

    2016-08-01

    Full Text Available The hospitality industry is facing major challenges, among them the new competition from novel forms of supply in the sharing economy. Airbnb, Homeaway, and Niumba, among other websites offering accommodations, are having an important impact in the sector, changing existing conditions and the market for the traditional hospitality industry. In this context, a strategy based in differentiation can help to prevent drops in revenues and profitability. The main objective of this paper is analyse if commitment towards sustainability has a positive impact on financial performance and can be considered a positive strategy in this new environment. The empirical data refer to a sample of hotels in Barcelona, one of the most important tourist cities in Europe. Our results suggest that there is no clear relationship between sustainability and better financial performance; however, sustainability commitment is associated with a minimum size, which can also have positive effects in terms of economies of scale and finally affect profitability. Hotels more committed to environmental issues are located in areas with a lower density of Airbnb apartments, and this geographical distribution can be more positive than a situation of massive tourist concentration in specific areas with negative externalities for neighbours.

  8. Necesidades y propuestas de formación del profesorado novel de la Universidad de Barcelona

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    Vicente Benedito Antolí

    2001-01-01

    Full Text Available El presente documento está basado en una investigación desarrollada por el Grupo de Formación y Desarrollo Profesional del Departamento de Didáctica y Organización Educativa (DOE de la Universidad de Barcelona (UB. Tal estudio perseguía fundamentalmente dos objetivos: a conocer las necesidades de los profesores y profesoras noveles de la UB en relación a la tarea que este profesorado ha de desarrollar dentro de su actividad docente; y b a partir de la interpretación de los datos obtenidos, tratar de establecer líneas generales de formación útiles para su mejora profesional. La investigación se sustentó en una perspectiva dual y dialéctica del concepto de “necesidad de formación” que ha guiado todo el proceso de recogida y análisis de la información.

  9. The Application of Urban System Analysis To The Seismic Risk Assessment of Barcelona

    Science.gov (United States)

    Irizarry, J.; Marturia, J.; Mena, U.

    The Urban System Analysis methodology developed by an international team directed by the BRGM (France) within the GEMITIS research program (1996-1999) consists of a global and integrated risk reduction strategy in order to improve the risk assessment effectiveness through the use of a geographical information system (GIS). A typical seismic risk analysis evaluates only the direct impacts of the earthquake, but gives few information about how to improve preventive effectiveness because it does not provide any data about the indirect consequences of an earthquake. This new methodology proposes to complete the scenario generation process by focusing physical vulnerability assessment on the essential elements for urban functioning. Besides it gives rational bases for the definition of appropriate risk management and preventive action plans. This study presents a first stage of the application of the Urban System Analysis method to the city of Barcelona. The elements at risk in the city like the residential, commercial, administrative, and industrials areas are identified and analyzed to define the weak points within its urban system. Then the most critical elements within the city's urban system will be identified to establish priorities for risk managements plans in the city.

  10. The integration of information and communication technology into community pharmacists practice in Barcelona.

    Science.gov (United States)

    Lupiáñez-Villanueva, Francisco; Hardey, Michael; Lluch, Maria

    2014-03-01

    The study aims to identify community pharmacists' (CPs) utilization of information and communication technology (ICT); to develop and characterize a typology of CPs' utilization of ICT and to identify factors that can enhance or inhibit the use of these technologies. An online survey of the 7649 members of the Pharmacist Association of Barcelona who had a registered email account in 2006 was carried out. Factor analysis, cluster analysis and binomial logit modelling were undertaken. Multivariate analysis of the CPs' responses to the survey (648) revealed two profiles of adoption of ICT. The first profile (40.75%) represents those CPs who place high emphasis on ICT within their practice. This group is therefore referred to as 'integrated CPs'. The second profile (59.25%) represents those CPs who make less use of ICT and so are consequently labelled 'non-integrated CPs'. Statistical modelling was used to identify variables that were important in predisposing CPs to integrate ICT with their work. From the analysis it is evident that responses to questions relating to 'recommend patients going on line for health information'; 'patients discuss or share their Internet health information findings'; 'emphasis on the Internet for communication and dissemination' and 'Pharmacists Professional Association information' play a positive and significant role in the probability of being an 'integrated CP'. The integration of ICT within CPs' practices cannot be adequately understood and appreciated without examining how CPs are making use of ICT within their own practice, their organizational context and the nature of the pharmacists-client relationship.

  11. Experimental evidence of polymorphysm of sexual development in Capitella sp. B (Polychaeta: Capitellidae from Barcelona, Spain

    Directory of Open Access Journals (Sweden)

    Nuria Méndez

    2002-06-01

    Full Text Available The development and growth of Capitella sp. B obtained from Barcelona were studied under culture conditions. Trochophore and metatrochophore larvae hatched non-simultaneously (two release periods from single brood tubes. This is the first laboratory evidence of polymorphysm of sexual development in the Capitella capitata species-complex. During the first release period, only free swimming trochophores hatched. The females, still bearing larvae inside the brood tube, were transferred to another dish. After three days, ciliated metatrochophores hatched from 8.7% of the transferred broods. In a culture experiment, larvae maintained in sediment enriched with artificial food grew to immature and mature adults. In this condition, the larvae that hatched during the first release reached the immature adult stage, while the larvae derived from the second release became mature adults. Oogenesis was observed three times in one female from the second release, though no spawning and fertilization occurred under incubation with sib mature males. Two different sizes of coelomic oocytes were observed. Polymorphysm of sexual development is discussed as an advantageous reproductive strategy enhancing survival in organic enriched sediments.

  12. JUEGOS OLÍMPICOS Y PARALÍMPICOS EN BRASIL: APRENDIENDO DE BARCELONA Y SIDNEY

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    Trinidad Domínguez Vila

    2014-02-01

    Full Text Available Entre 2014 y 2016, Brasil será sede de numerosos eventos, donde se destaca la celebración de las Olimpiadas en Rio de Janeiro. La industria del turismo será una de las grandes beneficiadas, teniendo como objetivo duplicar el número de turistas, 10 millones en 2016, y generar oportunidades de negocios. Esta investigación plantea el análisis de dicha meta a través de dos elementos vinculados a las Olimpíadas, el legado y la apertura a nuevos segmentos de turistas, concretamente el turismo sénior y el accesible. Se llevará a cabo un análisis de contenido de la bibliografía existente sobre Río 2016 para determinar el estado del arte, y posteriormente se realizará un estudio de caso de las Olimpíadas de Barcelona y Sídney, con el objetivo de obtener las claves del éxito de su legado y la repercusión a nivel turístico. Esto posibilitará identificar los pasos a seguir por Brasil para alcanzar su objetivo turístico.

  13. Where Sustainable School Meets the ‘Tthird Teacher’: Primary School Case Study From Barcelona, Spain

    Directory of Open Access Journals (Sweden)

    Marta Brkovic

    2015-07-01

    Full Text Available Participatory evaluation of aspiring sustainable schools and their pedagogical potential has recently come into focus. A few authors have made a significant start in examining schools as both environmentally and socially sustainable environments, which might simultaneously represent the ‘third teacher’. However, discussion around this idea is new in Spain. This paper describes a participatory post-occupancy study conducted with teachers and pupils in Fort Pienc School, Barcelona, Spain. Findings reveal the pedagogical potential of the school’s spaces and fabric, characterised as ‘sustainable’, and highlight the aspects that the research participants feel are performing and underperforming. The paper concludes that if we want sustainable schools to be a strategy for renovating the educational process and for leading us towards a better tomorrow globally and locally,  new models for exploring the pedagogical potential of sustainable schools should be developed and the efforts of all relevant parties synchronised; from architects to governments, from pupils to teachers.

  14. The beginning of Francoist psychiatry: the National Neurology and Psychiatry Conference (Barcelona, 1942).

    Science.gov (United States)

    Huertas, Rafael

    While there has been some research into Francoist psychiatry, much work still needs to be done on the reorganization of the mental health profession within the new state. Held in Barcelona on 12, 13 and 14th January 1942, the National Neurology and Psychiatry Conference undoubtedly played a major role in the attempt to overthrow the dominant ideas in the field of Spanish psychiatry and displace its most influential figures. This article seeks to analyse the Conference's main organizational features and examine its most significant content, with the aim of evaluating its strategic importance in the context of both the psychiatrists' professional and scientific interests and their ideological and political concerns. Conference papers tackled issues such as neurology and psychiatry in wartime, vitamin deficiency and the nervous system, and new psychiatric treatments, including shock therapy. The Conference's marked ideological nature represented the beginning of a new professional dynamic, featuring the emergence or establishment of new leaders intent on laying the foundations of psychiatry during the early years of the Franco regime.

  15. Life cycle assessment of two biowaste management systems for Barcelona, Spain

    International Nuclear Information System (INIS)

    Gueereca, Leonor Patricia; Gasso, Santiago; Baldasano, Jose Maria; Jimenez-Guerrero, Pedro

    2006-01-01

    A life cycle assessment (LCA) is performed in this study in order to evaluate the environmental implications of the management of the fermentable fraction of waste in the Barcelona Metropolitan Area (BMA), comparing the present management system with the system proposed for the future. The energy and water consumption were quantified, as well as the used area and the emissions to the atmosphere and water. The software TRACI was used in order to assess the potential impact on the categories of acidification, eutrophication, toxicity and harm to the human health (under the criteria of cancer, non-cancer and pollutants), global warming, depletion of the ozone layer, formation of photochemical smog, water use, land use and fossil fuel use. The results show that the management system proposed for the future reduces 7 out of the 12 potential impacts analyzed, due mainly to the change in the technology of landfill (baling-wrapping landfill). However, this system requires of further research to assess the impacts on a long term. The worst option for biowaste management is the traditional landfill, based on the multibarrier concept. The results of this work suggest that the future biowaste management system is better in environmental terms than the present system. (author)

  16. Reactor Physics Training

    International Nuclear Information System (INIS)

    Baeten, P.

    2007-01-01

    University courses in nuclear reactor physics at the universities consist of a theoretical description of the physics and technology of nuclear reactors. In order to demonstrate the basic concepts in reactor physics, training exercises in nuclear reactor installations are also desirable. Since the number of reactor facilities is however strongly decreasing in Europe, it becomes difficult to offer to students a means for demonstrating the basic concepts in reactor physics by performing training exercises in nuclear installations. Universities do not generally possess the capabilities for performing training exercises. Therefore, SCK-CEN offers universities the possibility to perform (on a commercial basis) training exercises at its infrastructure consisting of two research reactors (BR1 and VENUS). Besides the organisation of training exercises in the framework of university courses, SCK-CEN also organizes theoretical courses in reactor physics for the education and training of nuclear reactor operators. It is indeed a very important subject to guarantee the safe operation of present and future nuclear reactors. In this framework, an understanding of the fundamental principles of nuclear reactor physics is also necessary for reactor operators. Therefore, the organisation of a basic Nuclear reactor physics course at the level of reactor operators in the initial and continuous training of reactor operators has proven to be indispensable. In most countries, such training also results from the direct request from the safety authorities to assure the high level of competence of the staff in nuclear reactors. The objectives this activity are: (1) to provide training and education activities in reactor physics for university students and (2) to organise courses in nuclear reactor physics for reactor operators

  17. The fast breeder reactor

    International Nuclear Information System (INIS)

    Collier, J.

    1990-01-01

    The arguments for and against the fast breeder reactor are debated. The case for the fast reactor is that the world energy demand will increase due to increasing population over the next forty years and that the damage to the global environment from burning fossil fuels which contribute to the greenhouse effect. Nuclear fission is the only large scale energy source which can achieve a cut in the use of carbon based fuels although energy conservation and renewable sources will also be important. Fast reactors produce more energy from uranium than other types of (thermal) reactors such as AGRs and PWRs. Fast reactors would be important from about 2020 onwards especially as by then many thermal reactors will need to be replaced. Fast reactors are also safer than normal reactors. The arguments against fast reactors are largely economic. The cost, especially the capital cost is very high. The viability of the technology is also questioned. (UK)

  18. Safeguarding research reactors

    International Nuclear Information System (INIS)

    Powers, J.A.

    1983-03-01

    The report is organized in four sections, including the introduction. The second section contains a discussion of the characteristics and attributes of research reactors important to safeguards. In this section, research reactors are described according to their power level, if greater than 25 thermal megawatts, or according to each fuel type. This descriptive discussion includes both reactor and reactor fuel information of a generic nature, according to the following categories. 1. Research reactors with more than 25 megawatts thermal power, 2. Plate fuelled reactors, 3. Assembly fuelled reactors. 4. Research reactors fuelled with individual rods. 5. Disk fuelled reactors, and 6. Research reactors fuelled with aqueous homogeneous fuel. The third section consists of a brief discussion of general IAEA safeguards as they apply to research reactors. This section is based on IAEA safeguards implementation documents and technical reports that are used to establish Agency-State agreements and facility attachments. The fourth and last section describes inspection activities at research reactors necessary to meet Agency objectives. The scope of the activities extends to both pre and post inspection as well as the on-site inspection and includes the examination of records and reports relative to reactor operation and to receipts, shipments and certain internal transfers, periodic verification of fresh fuel, spent fuel and core fuel, activities related to containment and surveillance, and other selected activities, depending on the reactor

  19. Nuclear reactor instrumentation at research reactor renewal

    International Nuclear Information System (INIS)

    Baers, B.; Pellionisz, P.

    1981-10-01

    The paper overviews the state-of-the-art of research reactor renewals. As a case study the instrumentation reconstruction of the Finnish 250 kW TRIGA reactor is described, with particular emphasis on the nuclear control instrumentation and equipment which has been developed and manufactured by the Central Research Institute for Physics, Budapest. Beside the presentation of the nuclear instrument family developed primarily for research reactor reconstructions, the quality assurance policy conducted during the manufacturing process is also discussed. (author)

  20. Reactor Physics Programme

    International Nuclear Information System (INIS)

    De Raedt, C.

    2000-01-01

    The Reactor Physics and Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis on reactor fuel. This expertise is applied within the Reactor Physics and MYRRHA Research Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments. Progress and achievements in 1999 in the following areas are reported on: (1) investigations on the use of military plutonium in commercial power reactors; (2) neutron and gamma calculations performed for BR-2 and for other reactors; (3) the updating of neutron and gamma cross-section libraries; (4) the implementation of reactor codes; (6) the management of the UNIX workstations; and (6) fuel cycle studies

  1. Reactor Physics Programme

    Energy Technology Data Exchange (ETDEWEB)

    De Raedt, C

    2000-07-01

    The Reactor Physics and Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis on reactor fuel. This expertise is applied within the Reactor Physics and MYRRHA Research Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments. Progress and achievements in 1999 in the following areas are reported on: (1) investigations on the use of military plutonium in commercial power reactors; (2) neutron and gamma calculations performed for BR-2 and for other reactors; (3) the updating of neutron and gamma cross-section libraries; (4) the implementation of reactor codes; (6) the management of the UNIX workstations; and (6) fuel cycle studies.

  2. Vertical and horizontal variability of PM10 source contributions in Barcelona during SAPUSS

    Science.gov (United States)

    Brines, Mariola; Dall'Osto, Manuel; Amato, Fulvio; Cruz Minguillón, María; Karanasiou, Angeliki; Alastuey, Andrés; Querol, Xavier

    2016-06-01

    During the SAPUSS campaign (Solving Aerosol Problems by Using Synergistic Strategies) PM10 samples at 12-hour resolution were simultaneously collected at four monitoring sites located in the urban agglomerate of Barcelona (Spain). A total of 221 samples were collected from 20 September to 20 October 2010. The Road Site (RS) site and the Urban Background (UB) site were located at street level, whereas the Torre Mapfre (TM) and the Torre Collserola (TC) sites were located at 150 m a.s.l. by the sea side within the urban area and at 415 m a.s.l. 8 km inland, respectively. For the first time, we are able to report simultaneous PM10 aerosol measurements, allowing us to study aerosol gradients at both horizontal and vertical levels. The complete chemical composition of PM10 was determined on the 221 samples, and factor analysis (positive matrix factorisation, PMF) was applied. This resulted in eight factors which were attributed to eight main aerosol sources affecting PM10 concentrations in the studied urban environment: (1) vehicle exhaust and wear (2-9 µg m-3, 10-27 % of PM10 mass on average), (2) road dust (2-4 µg m-3, 8-12 %), (3) mineral dust (5 µg m-3, 13-26 %), (4) aged marine (3-5 µg m-3, 13-20 %), (5) heavy oil (0.4-0.6 µg m-3, 2 %), (6) industrial (1 µg m-3, 3-5 %), (7) sulfate (3-4 µg m-3, 11-17 %) and (8) nitrate (4-6 µg m-3, 17-21 %). Three aerosol sources were found to be enhanced at the ground levels (confined within the urban ground levels of the city) relative to the upper levels: (1) vehicle exhaust and wear (2.8 higher), (2) road dust (1.8 higher) and (3) local urban industries/crafts workshops (1.6 higher). Surprisingly, the other aerosol sources were relatively homogeneous at both horizontal and vertical levels. However, air mass origin and meteorological parameters also played a key role in influencing the variability of the factor concentrations. The mineral dust and aged marine factors were found to be a mixture of natural and

  3. GPR velocity and frequency analysis in industrial archaeology. Study of the EUETIB buildings (Barcelona, Sapin)

    Science.gov (United States)

    Pérez Gracia, V.; González Drigo, R.; Vendrell, D.

    2003-04-01

    The Ground-penetrating radar (GPR) analysis of some modernist buildings of the Technical Industrial School of Barcelona allow us to obtain valuable information of the underground constructions, corresponding to ancient structures of the preceding factory. The actual school is building on the modernist industrial complex. Many changes in the structure were carried out to adapt the structure to its actual use. The obtained GPR data was compared with the information, documents and photographies from the historical archives of the Diputación of Barcelona (Spain). To obtain accurate results and right interpretations, velocity analysis is performed in the different studied areas. The velocity values are used to convert accurately the two-way travel time into depth. The aim of those velocity estimations is obtain the minimum error in the final interpretations of the profiles. The velocity analysis is carried out using two different methods: calculating velocity using the reflection in anomalous bodies into the medium at a known depth, and calculating velocity from the hyperbolic events of the radargrams, caused by finite anomalies of the medium. The present tubes and conductions which are in use nowadays, have known depths. Then, velocity is obtained from the two-way travel time obtained for the reflected wave in that anomalous body. This method allow us to known velocities in areas where those elements are presented, which are mainly in the ground under the streets of the school. The reflection produced in unknown bodies which have finite dimensions, is obtained as an hyperbolic event. The averaged velocity of the medium over these bodies is calculated from the equation of the hyperbola. This method was used mainly where known elements were not presents in the ground. These areas are mainly the buildings of the school. Experimental velocities are understand as the averaged velocity of ray-path. The obtained values are applied to each area, to calculate depths of the

  4. [Perception of the transition to motherhood: a phenomenological study in the Barcelona region].

    Science.gov (United States)

    Berlanga Fernández, Sofía; Vizcaya-Moreno, María Flores; Pérez-Cañaveras, Rosa María

    2013-10-01

    To describe needs and experiences of mothers with children under one year old, to identify the factors that hinder the transition to motherhood, and to design the content of a health promotion program to develop motherhood support group sessions. A qualitative study with a phenomenological approach. Eight Primary Care Centres in the province of Barcelona, between July 2011 and July 2012. A total of 21 mothers participating in group dynamics maternity support: All of them participated in interviews and 8 in focus group. Semi-structured interviews were used in a purposive sample. The transcriptions were analysed by structure (latent content analysis) and content (manifest content analysis), with different categories being obtained. The participants in the study defined the construct of motherhood around three categories: Changes in lifestyle, feelings and perceptions. They identified as the most stressful times; «the new role», «changes in the partner relationship», «feelings», «experiences of pregnancy and childbirth», «idealisation», «lack of support», «crying», «colic», «read the signs of the child», «bath», «rest», «contradictory opinions», «learning», and «acquisition of new skills». They highlighted, as key topics for group dynamics, feeding, development, affective relationship, maternal confidence, fathers participation, family role, emotional, rest, massage, bath, accident prevention, colic, first aid, childcare, resources, and vaccines. Dynamic groups should be contextualised according to the perceived needs of the mothers, and other family members should be allowed to participate. Copyright © 2012 Elsevier España, S.L. All rights reserved.

  5. Everyday politics, social practices and movement networks: daily life in Barcelona's social centres.

    Science.gov (United States)

    Yates, Luke

    2015-06-01

    The relations between everyday life and political participation are of interest for much contemporary social science. Yet studies of social movement protest still pay disproportionate attention to moments of mobilization, and to movements with clear organizational boundaries, tactics and goals. Exceptions have explored collective identity, 'free spaces' and prefigurative politics, but such processes are framed as important only in accounting for movements in abeyance, or in explaining movement persistence. This article focuses on the social practices taking place in and around social movement spaces, showing that political meanings, knowledge and alternative forms of social organization are continually being developed and cultivated. Social centres in Barcelona, Spain, autonomous political spaces hosting cultural and educational events, protest campaigns and alternative living arrangements, are used as empirical case studies. Daily practices of food provisioning, distributing space and dividing labour are politicized and politicizing as they unfold and develop over time and through diverse networks around social centres. Following Melucci, such latent processes set the conditions for social movements and mobilization to occur. However, they not only underpin mobilization, but are themselves politically expressive and prefigurative, with multiple layers of latency and visibility identifiable in performances of practices. The variety of political forms - adversarial, expressive, theoretical, and routinized everyday practices, allow diverse identities, materialities and meanings to overlap in movement spaces, and help explain networks of mutual support between loosely knit networks of activists and non-activists. An approach which focuses on practices and networks rather than mobilization and collective actors, it is argued, helps show how everyday life and political protest are mutually constitutive. © London School of Economics and Political Science 2014.

  6. Manufactured and roll-your-own cigarettes: A changing pattern of smoking in Barcelona, Spain.

    Science.gov (United States)

    Sureda, Xisca; Fu, Marcela; Martínez-Sánchez, Jose M; Martínez, Cristina; Ballbé, Montse; Pérez-Ortuño, Raúl; Saltó, Esteve; Pascual, José A; Fernández, Esteve

    2017-05-01

    The objectives of the present study were to describe smoking prevalence and compare the smoking attributes of adult smokers according to the type of tobacco product consumed. Repeated cross-sectional surveys (2004-2005 and 2011-2012) of a representative sample of the adult (≥16 years) population in Barcelona, Spain, were used to assess self-reported tobacco consumption, smoking attributes, and salivary cotinine concentration. The survey conducted in 2004-2005 included information on 1245 subjects and the survey in 2011-2012 on 1307 individuals. Smoking prevalence decreased over the study period (from 26.6% to 24.1% in self-reported daily smokers). The prevalence of daily smokers who reported the use of manufactured cigarettes declined from 23.7% in 2004-2005 to 17.3% in 2011-2012. The prevalence of roll-your-own cigarette users increased from 0.4% to 3.7%. According to data obtained in 2011-2012, the proportion of self-reported roll-your-own cigarette users was higher among men (19.8% vs. 9.5% of women), participants aged 16-44 years (22.9% vs. 5.8% of participants aged 45-65 years and 4.0% of participants aged ≥65 years), and participants with secondary and university education (17.7% and 18.5% vs. 7.9% of participants with less than primary and primary education). We did not observe differences in cotinine concentrations according to the type of tobacco product consumed. Systematic collection of data on smoking prevalence and smoker attributes from representative samples of the population is necessary for policymakers to develop efficient tobacco control interventions. Considering the increase of roll-your-own cigarette users and the unclear health consequences of their use, policymakers should aim to implement tax policies to equalize the prices of different types of tobacco products. Copyright © 2017 Elsevier Inc. All rights reserved.

  7. [Prenatal exposure to drugs of abuse using meconium analysis in a low socioeconomic population in Barcelona].

    Science.gov (United States)

    García-Algar, O; Vall Combelles, O; Puig Sola, C; Mur Sierra, A; Scaravelli, G; Pacifici, R; Monleón Getino, T; Pichini, S

    2009-02-01

    For the first time in Europe, the aimed to estimate the prevalence of drug use by pregnant women and the subsequent foetal exposure to illicit drugs. Between October 2002 and February 2004, 1209 mother-infant dyads from the Hospital del Mar, Barcelona, Spain met eligibility criteria and agreed to participate in the study. Data on socio-economic and demographic characteristics and on drug habits during pregnancy were collected using a structured questionnaire. Neonatal meconium was collected within 24h after birth and analyzed by standardized chromatographic techniques for the presence of opiates, cocaine, cannabinoids and amphetamines. Meconium analysis showed an overall 10.9% positivity for drugs of abuse, with a specific prevalence of heroin, cocaine and cannabis with foetal exposure of 4.7, 2.6 and 5.3%, respectively. Structured interviews also revealed that 0.3, 1.2 and 1.5% of mothers used heroin, cocaine and cannabis, respectively, while only one mother declared ecstasy consumption, confirmed by meconium analysis. Parental ethnicity and working class was not associated with drug use. Drug consuming mothers were shown to have a higher number of previous abortions when compared to non-consumer mothers, which was probably due to a lack of family planning. Significantly lower birth weight and length was found in newborns from mothers exposed to cocaine alone or in combination with other drugs. This study, although developed in a low socio-economic-status cohort, may serve as an eye opener for any hidden non-negligible drug consumption during pregnancy. In this sense, meconium analysis can be important to identify neonates with a high suspicion of exposure to drugs of abuse in utero, and provides the basis for appropriate treatment and adequate medical and social follow-up.

  8. Identification of Trypanosoma cruzi Discrete Typing Units (DTUs) in Latin-American migrants in Barcelona (Spain).

    Science.gov (United States)

    Abras, Alba; Gállego, Montserrat; Muñoz, Carmen; Juiz, Natalia A; Ramírez, Juan Carlos; Cura, Carolina I; Tebar, Silvia; Fernández-Arévalo, Anna; Pinazo, María-Jesús; de la Torre, Leonardo; Posada, Elizabeth; Navarro, Ferran; Espinal, Paula; Ballart, Cristina; Portús, Montserrat; Gascón, Joaquim; Schijman, Alejandro G

    2017-04-01

    Trypanosoma cruzi, the causative agent of Chagas disease, is divided into six Discrete Typing Units (DTUs): TcI-TcVI. We aimed to identify T. cruzi DTUs in Latin-American migrants in the Barcelona area (Spain) and to assess different molecular typing approaches for the characterization of T. cruzi genotypes. Seventy-five peripheral blood samples were analyzed by two real-time PCR methods (qPCR) based on satellite DNA (SatDNA) and kinetoplastid DNA (kDNA). The 20 samples testing positive in both methods, all belonging to Bolivian individuals, were submitted to DTU characterization using two PCR-based flowcharts: multiplex qPCR using TaqMan probes (MTq-PCR), and conventional PCR. These samples were also studied by sequencing the SatDNA and classified as type I (TcI/III), type II (TcII/IV) and type I/II hybrid (TcV/VI). Ten out of the 20 samples gave positive results in the flowcharts: TcV (5 samples), TcII/V/VI (3) and mixed infections by TcV plus TcII (1) and TcV plus TcII/VI (1). By SatDNA sequencing, we classified the 20 samples, 19 as type I/II and one as type I. The most frequent DTU identified by both flowcharts, and suggested by SatDNA sequencing in the remaining samples with low parasitic loads, TcV, is common in Bolivia and predominant in peripheral blood. The mixed infection by TcV-TcII was detected for the first time simultaneously in Bolivian migrants. PCR-based flowcharts are very useful to characterize DTUs during acute infection. SatDNA sequence analysis cannot discriminate T. cruzi populations at the level of a single DTU but it enabled us to increase the number of characterized cases in chronically infected patients. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  9. [Contraception in the Roma population living in two low-income neighborhoods of Barcelona (Spain)].

    Science.gov (United States)

    Asensio, Alba; Nebot, Laia; Estruga, Lluïsa; Perez, Glòria; Diez, Èlia

    2018-02-22

    To describe the knowledge and use of contraceptive methods and health services in the Roma population (Kale/Spanish Gitanos) of two low-income neighbourhoods of Barcelona (2011-2015). Mixed. Community setting. 1) Descriptive cross-sectional study. We interviewed with a questionnaire a sample of residents of childbearing age. We compared the knowledge and use of contraception and services by ethnic self-identification and sex with adjusted logistic regression models to obtain adjusted odds ratio (ORa) and 95% confidence interval (95%CI). 2) Qualitative descriptive study with ethnographic method. We interviewed 10 Roma residents and three health professionals to explore aspects of contraception, family and roles. We performed a narrative analysis of discourse from the recorded texts. 834 people participated, with an 11.8% self-identified Roma population. With regard to the non-Roma population, more Roma women used tubal ligation (ORa: 3.0; 95%CI: 1.3-7)] and implant (ORa:4.9; 95%CI: 3.1-72), and had better knowledge of IUD (ORa: 2,4; 95%CI: 1,4-4,1), tubal obstruction (ORa: 3,3; 95%CI: 1,1-9,9) and injectables (ORa: 2,4; 95%CI: 1.3-4.4). Roma men used withdrawal more frequently (ORa: 3.6; 95%CI: 1.3-10), a practice confirmed in the qualitative study. Both communities used emergency contraception and health services. In the Roma population, contraception and reproduction are in the hands of women. As abortion is culturally penalized in the Roma population, women use it, but they face it alone. Gender emerged as a cross-cutting determinant in all issues explored. In the Roma population reproductive control and contraception remain the responsibility of women. Once the family is complete, Roma women use long-term contraception. Both populations use health services. Copyright © 2018 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.

  10. Impact of immigration on the cost of emergency visits in Barcelona (Spain

    Directory of Open Access Journals (Sweden)

    García Oscar

    2007-01-01

    Full Text Available Abstract Background The impact of immigration on health services utilisation has been analysed by several studies performed in countries with lower levels of immigration than Spain. These studies indicate that health services utilisation is lower among the immigrant population than among the host population and that immigrants tend to use hospital emergency services at the expense of primary care. We aimed to quantify the relative over-utilisation of emergency services in the immigrant population. Methods Emergency visits to Hospital del Mar in Barcelona in 2002 and 2003 were analysed. The country of origin, gender, age, discharge-related circumstances (hospital admission, discharge to home, or death, medical specialty, and variable cost related to medical care were registered. Immigrants were grouped into those from high-income countries (IHIC and those from low-income countries (ILIC and the average direct cost was compared by country of origin. A multivariate linear mixed model of direct costs was adjusted by country of origin (classified in five groups and by the individual variables of age, gender, hospital admission, and death as a cause of discharge. Medical specialty was considered as a random effect. Results With the exception of gynaecological emergency visits, costs resulting from emergency visits by both groups of immigrants were lower than those due to visits by the Spanish-born population. This effect was especially marked for emergency visits by adults. Conclusion Immigrants tend to use the emergency department in preference to other health services. No differences were found between IHIC and ILIC, suggesting that this result was due to the ease of access to emergency services and to lack of knowledge about the country's health system rather than to poor health status resulting from immigrants' socioeconomic position. The use of costs as a variable of complexity represents an opportunistic use of a highly exhaustive registry

  11. METRIC SURVEY OF THE MONUMENT OF QUEEN ELISENDA'S TOMB IN THE MONASTERY OF PEDRALBES, BARCELONA

    Directory of Open Access Journals (Sweden)

    M. A. Núñez

    2012-09-01

    Full Text Available When an urban development is planned the cartography of this territory is necessary, in the same way before starting a project to rehabilitate a monument the graphic information about it has to be available. At present, different techniques are available which allow to obtain three-dimensional models with a different accuracy level and runtimes.This paper shows the work carried out to obtain the graphic information and three-dimensional models that are necessary for the rehabilitation project of the tomb of Queen Elisenda in the Monastery of Pedralbes, Barcelona (Spain. This monument has the peculiarity of being symmetrical about the wall separating monastery church and the cloister. To do this, different techniques have been used that allow us to obtain an accurate model and as complete as possible, for the analysis of the construction process of the monument. In order to achieve the complete architectural survey the integration of laser scanning and photogrammetric data, and CAD models has been necessary. Due to the detail of the sculptures and the Queen’s sarcophagus two sensors, with different resolution, range and accuracy, have been used to obtain the laser scanning data. Stereo pairs have been taken to obtain the 3D model of these elements to complete the model and obtain an ortophotography.In this way, a comparative analysis of both techniques has been carried out, in order to decide which one is the suitable for certain application. This investigation has been restricted to the tomb, in the two symmetrical parts of the monument.

  12. RIESGO DE INUNDACIONES EN BORREDÀ (BARCELONA POR LA CRECIDA DE LA RIERA MARGANÇOL

    Directory of Open Access Journals (Sweden)

    Jaume Alcañiz Solanas

    2012-01-01

    Full Text Available Las avenidas y las inundaciones son un fenómeno natural común en la zona mediterránea. Las avenidas, con las consiguientes inundaciones, provocan de- sastres que a menudo producen pérdidas humanas, materiales e inmateriales de patrimonio, y por ello este tipo de desastres causan un gran impacto en la sociedad. La relevancia de las inundaciones en nuestra sociedad y el impacto que causó en los habitantes de la zona el episodio de crecida excepcional del río Margançol el 22 de agosto de 2008, ha conducido a profundizar en el riesgo de inundacio- nes en la cuenca de este río. Los objetivos han sido, reconstruir las características hidrológicas del episodio de crecida mencionado, identificar e integrar los facto- res que intervienen en el Análisis del Riesgo de este caso, estudiar la peligrosidad y la vulnerabilidad así como los factores que las generan, y proponer medidas de prevención para eventos similares futuros. Se profundiza en el caso de estudio, analizando por una parte la peligrosi- dad, y por otra, la vulnerabilidad, siempre en relación a la reconstrucción de la avenida del 22 de agosto de 2008. Convienen resaltar que se ha trabajado a dos escalas: una general a nivel de cuenca, y otra de detalle en un tramo de 4,5 km que discurre por el término municipal de Borredà (Barcelona. Con independencia del limitado alcance de la avenida estudiada, las con- clusiones del trabajo permiten, con la metodología usada, evaluar el riesgo de inundación en la zona y proponer medidas de gestión adecuadas.

  13. Serotype 5 pneumococci causing invasive pneumococcal disease outbreaks in Barcelona, Spain (1997 to 2011).

    Science.gov (United States)

    Rolo, Dora; Fenoll, Asunción; Fontanals, Dionísia; Larrosa, Nieves; Giménez, Montserrat; Grau, Immaculada; Pallarés, Román; Liñares, Josefina; Ardanuy, Carmen

    2013-11-01

    In this study, we analyzed the clinical and molecular epidemiology of invasive serotype 5 (Ser5) pneumococcal isolates in four teaching hospitals in the Barcelona, Spain, area (from 1997 to 2011). Among 5,093 invasive pneumococcal isolates collected, 134 (2.6%) Ser5 isolates were detected. Although the overall incidence of Ser5-related invasive pneumococcal disease (IPD) was low (0.25 cases/100,000 inhabitants), three incidence peaks were detected: 0.63/100,000 in 1999, 1.15/100,000 in 2005, and 0.37/100,000 in 2009. The rates of Ser5 IPD were higher among young adults (18 to 64 years old) and older adults (>64 years old) in the first two peaks, whereas they were higher among children in 2009. The majority (88.8%) of the patients presented with pneumonia. Comorbid conditions were present in young adults (47.6%) and older adults (78.7%), the most common comorbid conditions being chronic obstructive pulmonary disease (20.6% and 38.3%, respectively) and cardiovascular diseases (11.1% and 38.3%, respectively). The mortality rates were higher among older adults (8.5%). All Ser5 pneumococci tested were fully susceptible to penicillin, cefotaxime, erythromycin, and ciprofloxacin. The resistance rates were 48.5% for co-trimoxazole, 6.7% for chloramphenicol, and 6% for tetracycline. Two major related sequence types (STs), ST1223 (n = 65) and ST289 (n = 61), were detected. The Colombia(5)-ST289 clone was responsible for all the cases in the Ser5 outbreak in 1999, whereas the ST1223 clone accounted for 73.8% and 61.5% of the isolates in 2005 and 2009, respectively. Ser5 pneumococci are a frequent cause of IPD outbreaks in the community and involve children and adults with or without comorbidities. The implementation of the new pneumococcal conjugated vaccines (PCV10 and PCV13) might prevent such outbreaks.

  14. Las lógicas del deporte en la calle: espacios, practicantes y socialidades en Barcelona

    Directory of Open Access Journals (Sweden)

    Ricardo Sánchez Martín

    2008-03-01

    Full Text Available Con el presente artículo pretendemos mostrar una aproximación al complejo universo de las lógicas que dirigen la colonización del espacio público urbano a través de las prácticas físico-deportivas que, en menor o mayor medida, hacen uso y se apropian de las calles y plazas de la ciudad de Barcelona. En las reflexiones que siguen, se observa la heterogeneidad del fenómeno que, lejos de representar en exclusiva la superación y el rebasamiento del sistema deportivo moderno –así como de las características que lo sustentaban– para ubicarse en un universo postmoderno, se presenta como un hecho social total. Un deporte “urbano” que es moderno y postmoderno a la vez, informal y formal, lúdico y competitivo, libre y dirigido, abierto y cerrado, contradictorio y complejo siempre. Este estudio nos permite dibujar las características de algunos itinerarios deportivos urbanos, señalar diferentes perfiles de practicantes y nos acerca a las redes de socialidad que se establecen en este contexto. Las investigaciones empíricas que apoyan la parte de revisión teórica de este estudio, se basan en una serie de trabajos realizados desde el “Grup de Recerca i Innovació en Esport i Societat” (GRIES de la Universitat Ramon Llull, que incorporan un trabajo de campo realizado en diferentes fases durante el periodo 2002-2006.

  15. PREVENCIÓN INDICADA DEL CONSUMO PROBLEMÁTICO DE DROGAS EN ADOLESCENTES DE BARCELONA

    Directory of Open Access Journals (Sweden)

    Anna M Guitart

    2012-01-01

    Full Text Available Fundamentos: El Servicio de Orientación sobre Drogas (SOD de Barcelona ofrece un programa de Información y Orientación (PIO para adolescentes y un Programa de Medidas Alternativas (PMA a menores sancionados por consumo/tenencia de drogas en la vía pública. El objetivo de este trabajo es describirlos y comparar los perfiles de los usuarios en cada uno de ellos. Métodos: Estudio transversal descriptivo de 1.010 personas atendidas en ambos programas durante el período 2008-2010, con cribado de patología psiquiátrica y adicción e intervención breve extendida en consumidores sin indicios de patología. Se compararon los perfiles de los usuarios y se calcularon las tasas de uso del PMA por edad. Resultados: El cannabis motivó el 89,9% de entradas en el Servicio. Entre los usuarios del PIO el consumo de alto riesgo de cannabis fue del 13,1% y el consumo de riesgo de alcohol del 11,3%. Entre los usuarios del PMA los consumos fueron del 8,9 y 4% respectivamente. El 38% de los usuarios del PIO y el 6% de los del PMA se derivaron a atención especializada por presentar criterios de abuso o dependencia a alguna sustancia psicoactiva u otro trastorno psiquiátrico. Conclusiones: Los adolescentes atendidos en PMA hacen un consumo de cannabis (y en muchos casos de alcohol de riesgo bajo o moderado comparados con los del PIO. Además del valor de la intervención preventiva indicada, los programas facilitan la detección precoz de consumos problemáticos o trastornos mentales incipientes y su derivación.

  16. Waterpolo: diferencias entre ganadores y perdedores en desigualdad numérica en Barcelona-03

    Directory of Open Access Journals (Sweden)

    Pablo García Marín

    2013-06-01

    Full Text Available El objetivo de este estudio fue conocer las diferencias en la dinámica de la acción de juego en desigualdad numérica en waterpolo según la condición del equipo al finalizar el partido (ganador o perdedor. Se analizaron 1.230 microsituaciones de juego extraídas de los 96 partidos disputados en el Campeonato del Mundo de Waterpolo en Barcelona-03. Se utilizó un diseño sincrónico, nomotético y puntual. La unidad de análisis fue la Desigualdad Numérica Temporal Simple con Posesión. Se siguió un proceso deductivo inductivo para la elaboración del sistema de categorías del cual surgió el instrumento de observación para la cuantificación de los resultados. Se encontraron diferencias estadísticamente significativas (p < ,05 en variables relacionadas con el reglamento (formas de finalización, el espacio (posición de lanzamiento, procedencia del último pase e introducción de la pelota en la portería, la gestualidad (preparación del lanzamiento, tipo de lanzamiento y recepción previa al lanzamiento y la estrategia motriz (sistemas tácticos de juego y recuperación de la posesión tras lanzamiento. Dichas diferencias en las dinámicas de la acción de juego podrían explicar el rendimiento superior de los equipos ganadores de los partidos.

  17. Logging in the campus: borehole research and monitoring in a test hole in Barcelona (Spain)

    Science.gov (United States)

    Jurado, M. J.; Crespo, J.; Espallargas, R.

    2012-04-01

    Almera-1 hole was drilled for research purposes in the University of Barcelona campus area. The hole is 214m deep and was drilled in Quaternary to Paleozoic rocks in a urban area, next to the Institute of Earth Sciences (CSIC) borehole research lab. The main objectives for drilling a research hole were both the study of the poorly known subsurface geology and structure in this urban area and the construction of a dedicated infrastructure for logging tools tests, calibrations and long term monitoring. A direct connection to the lab was built to facilitate long term measuring experiments tool powering and data monitoring. A second auxiliary hole, Almera-2 50m deep was drilled to carry out cross-hole and tomographic experiments and hydrological monitoring. The upper section of Almera-1 hole is cased with PVC and the lowermost is an open hole section in paleozoic rock. The entire hole was logged in open hole mode (before casing) and also after the hole was cased in order to study the effect of the PVC casing on different logging tools responses (total and spectral gamma radioactivity through casing, acoustic televiewer through casing, full wave sonic through casing and magnetic susceptibility through casing). The comparison shows the effect on each of these tools response of the PVC casing. Also how the tools responses are more or less affected by the attenuation caused by the PVC of the rock signal and how this is more or less critical in the diverse lithologies represented in the Almera-1 hole. Wireline drilling was used to obtain best core recovery and to carry out log-core comparative analyses for logging tool response calibration and log-core correlation. The results obtained in the study of gamma ray (total and spectral), magnetic susceptibility and acoustic petrophysics are shown.

  18. A travel mode comparison of commuters' exposures to air pollutants in Barcelona

    Science.gov (United States)

    de Nazelle, Audrey; Fruin, Scott; Westerdahl, Dane; Martinez, David; Ripoll, Anna; Kubesch, Nadine; Nieuwenhuijsen, Mark

    2012-11-01

    Daily commutes may contribute disproportionately to overall daily inhalations of urban air contaminants. Understanding factors that explain variability of exposures during travel, and especially differences across transportation modes, is essential to accurately assess health impacts of traffic emissions and to develop effective mitigating measures. We evaluated exposures and inhaled doses of air pollution and assessed factors that contributed to their variability in different travel modes in Barcelona. Black carbon (BC), ultrafine particles (UFP), carbon monoxide (CO), fine particle mass (PM2.5) and carbon dioxide (CO2) were measured and compared across walk, bike, bus, and car modes for a total of 172 trips made on two different round trip routes. On average, the car mode experienced highest concentrations for all contaminants. In pairwise t-tests between concurrent mode runs, statistically significant differences were found for cars compared to walking and biking. Car-to-walk or car-to-bike concentration ratios ranged from 1.3 for CO2 to 25 for CO and were 2-3 for PM2.5, BC, and UFP. In multivariate analyses, travel mode explained the greatest variability in travel exposures, from 8% for PM2.5 to 70% for CO. Different modal patterns emerged when estimating daily inhaled dose, with active commuters' two to three times greater total inhalation volume during travel producing about equal UFP and BC daily inhaled doses to car commuters and 33-50% higher UFP and BC doses compared to bus commuters. These findings, however, are specific to the bike and pedestrian lanes in this study being immediately adjacent to the roadways measured. Dedicated bike or pedestrian routes away from traffic would lead to lower active travel doses.

  19. Urban air quality comparison for bus, tram, subway and pedestrian commutes in Barcelona.

    Science.gov (United States)

    Moreno, Teresa; Reche, Cristina; Rivas, Ioar; Cruz Minguillón, Maria; Martins, Vânia; Vargas, Concepción; Buonanno, Giorgio; Parga, Jesus; Pandolfi, Marco; Brines, Mariola; Ealo, Marina; Sofia Fonseca, Ana; Amato, Fulvio; Sosa, Garay; Capdevila, Marta; de Miguel, Eladio; Querol, Xavier; Gibbons, Wes

    2015-10-01

    Access to detailed comparisons in air quality variations encountered when commuting through a city offers the urban traveller more informed choice on how to minimise personal exposure to inhalable pollutants. In this study we report on an experiment designed to compare atmospheric contaminants inhaled during bus, subway train, tram and walking journeys through the city of Barcelona. Average number concentrations of particles 10-300 nm in size, N, are lowest in the commute using subway trains (Nbus or walking in the city centre (N>5.0×10(4) cm(-3)), with extreme transient peaks at busy traffic crossings commonly exceeding 1.0×10(5) cm(-3) and accompanied by peaks in Black Carbon and CO. Subway particles are coarser (mode 90 nm) than in buses, trams or outdoors (bus and subway. CO2 levels in public transport reflect passenger numbers, more than tripling from outdoor levels to >1200 ppm in crowded buses and trains. There are also striking differences in inhalable particle chemistry depending on the route chosen, ranging from aluminosiliceous at roadsides and near pavement works, ferruginous with enhanced Mn, Co, Zn, Sr and Ba in the subway environment, and higher levels of Sb and Cu inside the bus. We graphically display such chemical variations using a ternary diagram to emphasise how "air quality" in the city involves a consideration of both physical and chemical parameters, and is not simply a question of measuring particle number or mass. Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

  20. Effect of public transport strikes on air pollution levels in Barcelona (Spain).

    Science.gov (United States)

    Basagaña, Xavier; Triguero-Mas, Margarita; Agis, David; Pérez, Noemí; Reche, Cristina; Alastuey, Andrés; Querol, Xavier

    2018-01-01

    Public transport strikes can lead to an increase of the number of private vehicle trips, which in turn can increase air pollution levels. We aimed to estimate the change in air pollution concentrations during public transport strikes in the city of Barcelona (Spain). Data on strikes of the metro, train or bus systems were collected from government records (2005-2016). We collected daily concentrations of NOx; particulate matter with an aerodynamic diameter smaller than 10μm (PM10), 2.5μm (PM2.5), and 1μm (PM1); particle number concentration (N); black carbon (BC) and CO from research and official monitoring stations. We fitted linear regression models for each pollutant with the strike indicator as an independent variable, and models were adjusted for day of the week, month, year, and holiday periods. During the study period, there were 208days affected by a strike of the metro (28), train (106) or bus (91) systems. Half of the strikes were partial, most of them were single-day strikes, there was little overlap between strikes of the different transport systems, and all strikes had to comply with mandatory minimal services. When pooling all types of strikes, NOx and BC showed higher levels during strike days in comparison with non-strike days (increase between 4.1% and 7.7%, with higher increases for NO). The increases in these concentrations were more evident during full day and multiday metro strikes. In conclusion, alterations in public transport have consequences on air quality. This highlights the importance of public transport in reducing air pollution concentrations in cities. Copyright © 2017 Elsevier B.V. All rights reserved.

  1. [Perception of healthcare professionals on the Breast Cancer Screening Programme in Barcelona].

    Science.gov (United States)

    Serral, G; Puigpinós-Riera, R; Maydana, E; Pons-Vigués, M; Borrell, C

    2013-01-01

    A good communication plan is vital for optimal results in any screening programme. The objective of this study was to assess the knowledge, involvement and opinion of health professionals regarding the Breast Cancer Screening Programme in Barcelona in 2008. A cross-sectional study using an anonymous and self-administered questionnaire. The study population (N = 960) were health professionals from Primary Health-care (PH), Programs for Sexual and Reproductive Health (PSRH), and Community Pharmacies (CP). The dependent variables were: knowledge of the Programme, professional involvement and opinion of the Programme. The independent variables were: sex, age, qualifications, employment status, and health team. A descriptive and bivariate analysis was performed. Using multivariate logistic regression models adjusted for age, an Odds Ratios (OR) were obtained along with the 95% confidence intervals (CI 95%). PSRH professionals know the target population better; 80.2% versus 26.1% PH, and 14.0% CP, respectively. Professional involvement was related to the health care team (ORCP/PH: 0.32, CI 95%: 0.22-0.43) being observed more in PH. The opinion on the Programme in reducing breast cancer mortality was similar in the three teams (61.6% PH, 59.3% PSRH, and 56.5% CP). Healthcare professionals are unaware of some aspects of Programme, such as age range or periodicity. There is great professional involvement and belief that the Programme has helped disseminate information and knowledge on the early detection of breast cancer. Copyright © 2012 SECA. Published by Elsevier Espana. All rights reserved.

  2. [Management of the risks associated with allergens in school canteens in Barcelona (Spain)].

    Science.gov (United States)

    Caballé-Gavaldà, Laura; García-Cid, Ester; Fontcuberta-Famadas, Mireia; Balfagón-Marzal, Pere; Durán-Neira, Julia

    2014-01-01

    To determine demand for special meals and their types for students with food allergies or intolerances (FAI) in school canteens in Barcelona (Spain) during the 2011-12 school year, and to ascertain the degree of implementation of self-assessment plans and preventive measures for the management of allergens, and the relationships between the application of such measures and other variables. A descriptive study was performed of a representative sample of schools (n=129). The dependent variables collected data on the schools and students, the level of demand for special meals, and the implementation of preventive measures. Independent variables consisted of canteen management, the number of users, and whether self-assessment plans were implemented. For those schools that prepared meals (n=92), an index was calculated from the questions on preventive measures. Student t-tests were used to compare the means of the indices with stratification by the independent variables. A total of 89% of schools served special meals for students with FAI (1,507 special meals per day, 5% of all meals) and 65% had no allergen control plan. The mean of the indices was 11.6 out of 17. Externally managed canteens, with more users and with self-assessment plans, implemented more preventive measures for allergen management (p<0.05). A high proportion of schools report carrying out preventive measures in the process of preparing and serving special meals. Those with self-assessment plans have better preventive practices. To manage this food-related risk, food hygiene inspection services should promote the implementation of allergen control plans in school canteens. Copyright © 2014 SESPAS. Published by Elsevier Espana. All rights reserved.

  3. Characterization of mutations in streptomycin-resistant Mycobacterium tuberculosis clinical isolates in the area of Barcelona.

    Science.gov (United States)

    Tudó, Griselda; Rey, Emma; Borrell, Sònia; Alcaide, Fernando; Codina, Gemma; Coll, Pere; Martín-Casabona, Núria; Montemayor, Michel; Moure, Raquel; Orcau, Angels; Salvadó, Margarita; Vicente, Eva; González-Martín, Julià

    2010-11-01

    To determine the proportion and type of mutations in Mycobacterium tuberculosis isolates resistant to streptomycin, and their relationship with the level of resistance and with the epidemiological molecular pattern of the isolates. Sixty-nine streptomycin-resistant isolates from a M. tuberculosis strain collection (1995-2005) from Barcelona were studied. The MIC of streptomycin for each isolate was determined using the proportions method with Middlebrook 7H11 medium. The entire rpsL gene and two specific fragments of the rrs gene (the 530 loop and the 912 region) were sequenced. IS6110-restriction fragment length polymorphism and spoligotyping were performed in each isolate. Twenty-six (26/69, 37.7%) streptomycin-resistant isolates presented a mutation in either the rpsL gene and/or the rrs530 loop, with no mutation in the rrs912 region. Seventeen (24.6%) isolates showed rpsL mutations (codons 43 and 88) associated with high MIC levels. Nine (13.0%) isolates had alterations in the rrs gene (A513T, A513C and C516T). Nineteen isolates (19/64, 29.7%) were classified into seven clusters (containing 2-5 isolates per cluster). Nineteen different spoligotype patterns were found. All the LAM3 spoligotype isolates (10/67, 14.9%) were associated with a C491T change in the rrs gene, being also observed in all LAM3 streptomycin-susceptible isolates. Mutations in the rpsL and rrs genes were detected in 37.7% of streptomycin-resistant M. tuberculosis isolates. High-level resistance was associated with mutations in the rpsL gene, whereas wild-type isolates showed low MIC levels. The presence of the C491T substitution in the rrs gene in streptomycin-susceptible and -resistant isolates demonstrates that this change is an epidemiological marker associated with LAM3 sublineage.

  4. Research reactor instrumentation

    International Nuclear Information System (INIS)

    Boeck, H.; Villa, M.

    2001-02-01

    This is a textbook on research reactor instrumentation for training purposes, it gives a survey on research reactor instrumentation requirements and eight exercises covering the major aspects of this topic are presented. (author)

  5. Nuclear reactors; graphical symbols

    International Nuclear Information System (INIS)

    1987-11-01

    This standard contains graphical symbols that reveal the type of nuclear reactor and is used to design graphical and technical presentations. Distinguishing features for nuclear reactors are laid down in graphical symbols. (orig.) [de

  6. Hybrid plasmachemical reactor

    Energy Technology Data Exchange (ETDEWEB)

    Lelevkin, V. M., E-mail: lelevkin44@mail.ru; Smirnova, Yu. G.; Tokarev, A. V. [Kyrgyz-Russian Slavic University (Kyrgyzstan)

    2015-04-15

    A hybrid plasmachemical reactor on the basis of a dielectric barrier discharge in a transformer is developed. The characteristics of the reactor as functions of the dielectric barrier discharge parameters are determined.

  7. Ship propulsion reactors technology

    International Nuclear Information System (INIS)

    Fribourg, Ch.

    2002-01-01

    This paper takes the state of the art on ship propulsion reactors technology. The french research programs with the corresponding technological stakes, the reactors specifications and advantages are detailed. (A.L.B.)

  8. Fusion reactor design studies

    International Nuclear Information System (INIS)

    Emmert, G.A.; Kulcinski, G.L.; Santarius, J.F.

    1990-01-01

    This report discusses the following topics on the ARIES tokamak: systems; plasma power balance; impurity control and fusion ash removal; fusion product ripple loss; energy conversion; reactor fueling; first wall design; shield design; reactor safety; and fuel cost and resources

  9. Reactor shutdown method

    International Nuclear Information System (INIS)

    Nishino, Yoshitaka; Sawa, Toshio; Matsumoto, Takayuki; Osumi, Katsumi; Usui, Naoshi.

    1991-01-01

    A device for injecting a hydrogen gas, a chelating agent or a reducing agent is disposed in a reactor water recycling system. Upon reactor shutdown, the hydrogen gas, the chelating agent or the reducing agent is injected to primary coolants. With such a procedure, radioactive ions formed by the dissolution of oxide layers at the surface of pipelines and equipments in a reactor water recycling system and a reactor water cleanup system are removed from the primary coolants by a reactor water cleanup device. Accordingly, since the dose rate at the surface of the pipelines can be reduced, the operator's radiation dose can be reduced upon periodical inspection for a power plant. Further, the inner pressure of the reactor is kept higher than the saturated steam pressure at the reactor water temperature to suppress boiling of the reactor water. This can suppress the peeling of cruds deposited to the surface of the fuel cladding tube. (I.N.)

  10. Undergraduate reactor control experiment

    International Nuclear Information System (INIS)

    Edwards, R.M.; Power, M.A.; Bryan, M.

    1992-01-01

    A sequence of reactor and related experiments has been a central element of a senior-level laboratory course at Pennsylvania State University (Penn State) for more than 20 yr. A new experiment has been developed where the students program and operate a computer controller that manipulates the speed of a secondary control rod to regulate TRIGA reactor power. Elementary feedback control theory is introduced to explain the experiment, which emphasizes the nonlinear aspect of reactor control where power level changes are equivalent to a change in control loop gain. Digital control of nuclear reactors has become more visible at Penn State with the replacement of the original analog-based TRIGA reactor control console with a modern computer-based digital control console. Several TRIGA reactor dynamics experiments, which comprise half of the three-credit laboratory course, lead to the control experiment finale: (a) digital simulation, (b) control rod calibration, (c) reactor pulsing, (d) reactivity oscillator, and (e) reactor noise

  11. Reactor System Design

    International Nuclear Information System (INIS)

    Chi, S. K.; Kim, G. K.; Yeo, J. W.

    2006-08-01

    SMART NPP(Nuclear Power Plant) has been developed for duel purpose, electricity generation and energy supply for seawater desalination. The objective of this project IS to design the reactor system of SMART pilot plant(SMART-P) which will be built and operated for the integrated technology verification of SMART. SMART-P is an integral reactor in which primary components of reactor coolant system are enclosed in single pressure vessel without connecting pipes. The major components installed within a vessel includes a core, twelve steam generator cassettes, a low-temperature self pressurizer, twelve control rod drives, and two main coolant pumps. SMART-P reactor system design was categorized to the reactor coe design, fluid system design, reactor mechanical design, major component design and MMIS design. Reactor safety -analysis and performance analysis were performed for developed SMART=P reactor system. Also, the preparation of safety analysis report, and the technical support for licensing acquisition are performed

  12. Du Modernisme à Joan Miró : la culture urbaine à Barcelone From Modernism to Joan Miró: Barcelona and Urban Culture Del modernismo a Joan Miró: la cultura urbana en Barcelona

    Directory of Open Access Journals (Sweden)

    Georges Serra

    1996-05-01

    Full Text Available La ville est une langue, écrit Barthes. Le langage architectural et urbaniste de Barcelone présente une recherche d'identité culturelle qui refuse toute forme d'imitation et trouve son expression dans le passé catalan et/ou l'imaginaire méditerranéen. Son objectif est la mise en valeur de la catalanité en dépit des modes de standardisation introduits par le nouvel ordre économique mondial. La recherche identitaire se nourrit de l'image littéraire de la ville, de son image dans l'art et dans les aspects les plus novateurs de la création urbaine contemporaine.The town is a language, Roland Barthes wrote. The architectural and urbanistic language of Barcelona is that of a search for a cultural identity. It refuses only kind of imitation, and finds the elements of its expression in the Catalan past and/or Mediterranean imagery. Its objective is to emphasize Catalanity in spite of the standardization trends introduced by the new global economy. The search for an identity crops up in the literary image of Barcelona, in art, and in the most daring aspects of contemporary urban creations.La ciudad es un lenguaje, escribía Roland Barthes. El lenguaje arquitectural y urbanístico de Barcelona es el de la búsqueda de una cultura propia. Además de negarse a cualquiera imitación, saca del pasado catalán, y/o del mundo imaginario mediterráneo, los elementos de su expresión. El objetivo no es otro que afirmar la catalanidad y ello a pesar de las tentaciones de uniformización a las que induce el nuevo orden económico mundial. Esta búsqueda de una identidad vuelve a encontrarse en la imagen literaria de Barcelona, en las artes plásticas, y en los aspectos más descabellados de la creación urbana contemporánea.

  13. Negative mood states and related factors in a sample of adolescent secondary-school students in Barcelona (Spain) Estados de ánimo negativos y los factores relacionados en una muestra de adolescentes de enseñanza secundaria de Barcelona

    OpenAIRE

    Emily Q. Ahonen; Manel Nebot; Emmanuel Giménez

    2007-01-01

    Introduction: Poor mental health is a common problem in adolescence. Little information is available, however, about the factors influencing negative mood states in otherwise healthy adolescents. We aimed to describe the mood states and related factors in a sample of adolescents in the city of Barcelona (Spain). Methods: We administered a health survey to a sample of 2,727 students from public, subsidized, and private schools in Barcelona, aged approximately 14, 16, and 18 years old. To analy...

  14. Nuclear reactor shutdown system

    International Nuclear Information System (INIS)

    Mangus, J.D.; Cooper, M.H.

    1982-01-01

    An improved nuclear reactor shutdown system is described comprising a temperature sensitive device connected to control the electric power supply to a magnetic latch holding a body of a neutron absorbing material. The temperature sensitive device is exposed to the reactor coolant so that when the reactor coolant temperature rises above a specific level, the temperature sensitive device will cause deenergization of the magnetic latch to allow the body of neutron absorbing material to enter the reactor core. (author)

  15. PUSPATI TRIGA Reactor

    International Nuclear Information System (INIS)

    Masood, Z.

    2016-01-01

    The PUSPATI TRIGA Reactor is the only research reactor in Malaysia. This 1 MW TRIGA Mk II reactor first reached criticality on 28 June 1982 and is located at the Malaysian Nuclear Agency premise in Bangi, Malaysia. This reactor has been mainly utilised for research, training and education and isotope production. Over the years several systems have been refurbished or modernised to overcome ageing and obsolescence problems. Major achievements and milestones will also be elaborated in this paper. (author)

  16. Reactor power measuring device

    International Nuclear Information System (INIS)

    Izumi, Mikio; Sano, Yuji; Seki, Eiji; Yoshida, Toshifumi; Ito, Toshiaki.

    1993-01-01

    The present invention provides a self-powered long detector having a sensitivity over the entire length of a reactor core as an entire control rod withdrawal range of a BWR type reactor, and a reactor power measuring device using a gamma ray thermometer which scarcely causes sensitivity degradation. That is, a hollow protection pipe is disposed passing through the reactor core from the outside of a reactor pressure vessel. The self-powered long detectors and the gamma ray thermometers are inserted and installed in the protection pipe. An average reactor power in an axial direction of the reactor relative to a certain position in the horizontal cross section of the reactor core is determined based on the power of the self-powered long detector over the entire length of the reactor core. Since the response of the self-powered detector relative to a local power change is rapid, the output is used as an input signal to a safety protection device of the reactor core. Further, a gamma ray thermometer secured in the reactor and having scarce sensitivity degradation is used instead of an incore travelling neutron monitor used for relative calibration of an existent neutron monitor secured in the reactor. (I.S.)

  17. Ulysse, mentor reactor

    International Nuclear Information System (INIS)

    Bouquin, B.; Rio, I.; Safieh, J.

    1997-01-01

    On July 23, 1961, the ULYSSE reactor began its first power rise. Designed at that time to train nuclear engineering students and reactor operators, this reactor still remains an indispensable tool for nuclear teaching and a choice instrument for scientists. (author)

  18. Towards nuclear fusion reactors

    International Nuclear Information System (INIS)

    1993-11-01

    The results of nuclear fusion researches in JAERI are summarized. In this report, following themes are collected: the concept of fusion reactor (including ITER), fusion reactor safety, plasma confinement, fusion reactor equipment, and so on. Includes glossary. (J.P.N.)

  19. Refuelling nuclear reactors

    International Nuclear Information System (INIS)

    Stacey, J.; Webb, J.; White, W.P.; McLaren, N.H.

    1981-01-01

    An improved nuclear reactor refuelling machine is described which can be left in the reactor vault to reduce the off-load refuelling time for the reactor. The system comprises a gripper device rangeable within a tubular chute, the gripper device being movable by a pantograph. (U.K.)

  20. The Jules Horowitz reactor

    International Nuclear Information System (INIS)

    2003-01-01

    The Jules Horowitz reactor is the future european reactor for irradiation. It will be used for materials and new fuels irradiation. Experiments for the safety and the validation of neutronics calculation will be also realized. This paper presents the design and the performance of the reactor and the schedule of the remaining design studies. (A.L.B.)

  1. Distribution and sources of organic matter in size-fractionated nearshore sediments off the Barcelona city (NW Mediterranean)

    Science.gov (United States)

    Quirós-Collazos, Lucía; Pedrosa-Pàmies, Rut; Sanchez-Vidal, Anna; Guillén, Jorge; Duran, Ruth; Cabelloa, Patricia

    2017-04-01

    Continental shelves are recognized to play a key role in the biogeochemical cycle of carbon, linking terrestrial and marine carbon reservoirs. In this study we investigate the physical and biogeochemical processes that control the source, transport and fate of organic carbon (OC) in the continental shelf off Barcelona city, in the NW Mediterranean Sea. Surface sediment samples were collected from depths of 10-40 m during late summer and autumn 2012. Grain size and biogeochemical parameters such as OC, its stable isotope δ13C, total nitrogen (TN) and OC/TN ratios were analysed in size-fractionated sediments. The influence of environmental factors over the study area was determined using hydrological and oceanographic time series, together with video images of the Barcelona coast line and nearshore region. We have found a wide range of OC contents, from 0.13 to 8.68%, depending on water depth and sediment particle size. The highest OC concentration was always found in the clay fraction (63 μm) that contained terrestrial plant debris. Wave activity, discharge of the Besòs River and the "Espigó" de Ginebra; outfall were the main mechanisms controlling the sorting of sediments by their grain size and thus the distribution of OC in the inner shelf off Barcelona. In addition, we observed that the organic matter in clay particles was progressively degraded seawards, probably because these particles remain suspended in the water column much more time compared to those that are heavier and, therefore, they are exposed for longer time periods to oxygenated conditions. Both OC/TN ratios and δ13C values found suggest that the organic matter preserved was predominantly land supplied.

  2. Consolidación estructural del edificio patrimonial de C/Ripoll, 25 de Barcelona - Ca la Dona

    Directory of Open Access Journals (Sweden)

    Bestraten, S.

    2012-12-01

    Full Text Available The building, found in 25th Ripoll Street, in Barcelona, is listed by the Special Plan for protection of architectural heritage of the Barcelona district, Ciutat Vella. In 2005, the Ca la Dona association with support from all Catalan public administrations, starts a restoration process under a sustainability criteria. An innovative structural intervention is performed consisting in a functional replacement of the existing floorings with cross-laminated timber panel, which, doesn’t change the overall load state of the building, making compatible the structural continuity of the existing load-bearing walls. This project opens a way to the prefabrication of solutions used in architectural restoration, allowing to adapt to regulatory constraints, along with considering current issues, such as, sustainability.

    El edificio de la calle Ripoll nº25 de Barcelona está catalogado por el Plan especial de protección del patrimonio arquitectónico del distrito barcelonés de Ciutat Vella. En 2005 la asociación Ca la Dona con el apoyo de todas las administraciones públicas catalanas inicia un proceso de rehabilitación con criterios de sostenibilidad. Se realiza una intervención estructural innovadora consistente en una sustitución funcional de forjados existentes con panel de madera contralaminada, que en general no modifica el estado de cargas del edificio haciendo compatible la continuidad estructural de los muros de carga existentes. Este proyecto abre un camino a la prefabricación en la rehabilitación arquitectónica, que permite su adaptación a los requerimientos normativos actuales y a su vez integra consideraciones tan actuales como la sostenibilidad.

  3. Risk perception of sexually transmitted infections and HIV in Nigerian commercial sex workers living in Barcelona: a study protocol

    Science.gov (United States)

    Coma Auli, Núria; Mejía-Lancheros, Cília; Berenguera, Anna; Mayans, Martí Vall; Lasagabaster, Maider Arando; Pujol-Ribera, Enriqueta

    2013-01-01

    Introduction Sexually transmitted infections (STIs) and HIV are a serious global public health issue. These diseases are largely preventable, as they are directly and indirectly associated with potentially modifiable factors, including socioeconomic conditions. Sexual transmission is responsible for over 75% of new HIV infections worldwide. Moreover, commercial sex workers and their clients are two of the groups at the highest risk of acquiring and transmitting these infectious diseases, due to an extensive number of sexual encounters and the various factors related to commercial sex situations. This qualitative study aims to deepen the understanding of the risk perception of STIs and HIV and their associated factors in Nigerian commercial sex workers in the city of Barcelona. Methods and analysis This is a qualitative, descriptive, interpretive study based on a social constructivist and phenomenological perspective conducted on a saturated sample of Nigerian commercial sex workers in the city of Barcelona. Data will be collected through semistructured individual and triangular group interviews. Information will be examined using a sociological discourse analysis, allowing us to understand the social and individual factors related to the risk perception of STIs and HIV in commercial sex workers. Discussion Qualitative studies are an important element in identifying individual, social and contextual factors directly or indirectly related to the health/disease process. This qualitative study will provide essential knowledge to improve health promotion, prevention strategies and effective management of STIs both for commercial sex workers and their clients. Ethics This study has been approved by the clinical research ethics committee (CEIC) of IDIAP Jordi Gol in Barcelona, 2012. PMID:23901029

  4. The potential impacts of electric vehicles on air quality in the urban areas of Barcelona and Madrid (Spain)

    Science.gov (United States)

    Soret, A.; Guevara, M.; Baldasano, J. M.

    2014-12-01

    This work analyses the potential air quality improvements resulting from three fleet electrification scenarios (∼13, 26 and 40%) by replacing conventional vehicles with Electric Battery Vehicles (EBVs), Plug-in Hybrid Electric Vehicles (PHEVs) and Hybrid Electric Vehicles (HEVs). This study has been performed for the cities of Barcelona and Madrid (Spain), where road transport is the primary emission source. In these urban areas, several air quality problems are present, mainly related to NO2 and particulate matter. The WRF-ARW/HERMESv2/CMAQ model system has been applied at high spatial (1 × 1 km2) and temporal (1 h) resolution. The results show that fleet electrification offers a potential for emission abatement, especially related to NOx and CO. Regarding the more ambitious scenario (∼40% fleet electrification), reductions of 11% and 17% of the total NOx emissions are observed in Barcelona and Madrid respectively. These emissions reductions involve air quality improvements in NO2 maximum hourly values up to 16%: reductions up to 30 and 35 μg m-3 in Barcelona and Madrid, respectively. Furthermore, an additional scenario has been defined considering electric generation emissions associated with EBVs and PHEVs charging from a combined-cycle power plant. These charging emissions would produce slight NO2 increases in the downwind areas of quality even when considering emissions associated with charging electric vehicles. However, two further points should be considered. First, fleet electrification cannot be considered a unique solution, and other management strategies may be defined. This is especially important with respect to particulate matter emissions, which are not significantly reduced by fleet electrification (quality.

  5. Effect of Mental Arithmetic on heart rate responses during Parabolic Flights: the Barcelona Zero-G Challenge

    Science.gov (United States)

    Osborne, Jeffrey R.; Alonsopérez Lanza, María Victoria; Desclaux, David Ferrer; Goswami, Nandu; González Alonso, Daniel Ventura; Moser, Maximilian; Grote, Vincent; Garcia-Cuadrado, Gloria; Perez-Poch, Antoni

    2014-07-01

    When an astronaut transitions from a low to high gravitational environment, fluid shifts from the head towards the feet resulting in orthostatic intolerance and syncope. Ground based experiments have shown that by stimulating the cardiovascular system via simple mental stressors, syncope can be delayed, potentially enabling astronauts to reach assistance before loss of consciousness. However, the effect of mental stressors on the stimulation of the cardiovascular system in gravitational environments different than that of Earth's is unknown. As such, this paper investigates the effects that mental stressors under various gravitational environments. To do this, a pilot study was performed in which two participants were flown on two separate parabolic flights that simulated hyper and hypogravity conditions. The plane used was an Aerobatic Single-Engine Cap-10B plane (twin seater), and each participant executed 11 parabolas. The participants were the winners of the Barcelona Zero-G Challenge 2011 organized by UPC Universitat Politècnica de Catalunya-BarcelonaTech and Aeroclub Barcelona-Sabadell. Measurements were made of the participants' hemodynamic and autonomic response throughout the parabolas, using a Chronocord: high precision HRV monitor. Comparisons of the baseline response without mental stressors, and the response with mental stressors during different gravitational loading conditions were made. It was observed that there is an increase in cardiovascular activity during hypo- and hyper-gravity when performing mental arithmetic. Our results show that the twin seater aerobatic single engine CAP-10B aicraft can provide changing gravitational loading conditions for enough periods to study changes in physiological systems.

  6. Traffic-Related Air Pollution, Noise at School, and Behavioral Problems in Barcelona Schoolchildren: A Cross-Sectional Study.

    Science.gov (United States)

    Forns, Joan; Dadvand, Payam; Foraster, Maria; Alvarez-Pedrerol, Mar; Rivas, Ioar; López-Vicente, Mònica; Suades-Gonzalez, Elisabet; Garcia-Esteban, Raquel; Esnaola, Mikel; Cirach, Marta; Grellier, James; Basagaña, Xavier; Querol, Xavier; Guxens, Mònica; Nieuwenhuijsen, Mark J; Sunyer, Jordi

    2016-04-01

    The available evidence of the effects of air pollution and noise on behavioral development is limited, and it overlooks exposure at schools, where children spend a considerable amount of time. We aimed to investigate the associations of exposure to traffic-related air pollutants (TRAPs) and noise at school on behavioral development of schoolchildren. We evaluated children 7-11 years of age in Barcelona (Catalonia, Spain) during 2012-2013 within the BREATHE project. Indoor and outdoor concentrations of elemental carbon (EC), black carbon (BC), and nitrogen dioxide (NO2) were measured at schools in two separate 1-week campaigns. In one campaign we also measured noise levels inside classrooms. Parents filled out the strengths and difficulties questionnaire (SDQ) to assess child behavioral development, while teachers completed the attention deficit/hyperactivity disorder criteria of the DSM-IV (ADHD-DSM-IV) list to assess specific ADHD symptomatology. Negative binomial mixed-effects models were used to estimate associations between the exposures and behavioral development scores. Interquartile range (IQR) increases in indoor and outdoor EC, BC, and NO2 concentrations were positively associated with SDQ total difficulties scores (suggesting more frequent behavioral problems) in adjusted multivariate models, whereas noise was significantly associated with ADHD-DSM-IV scores. In our study population of 7- to 11-year-old children residing in Barcelona, exposure to TRAPs at school was associated with increased behavioral problems in schoolchildren. Noise exposure at school was associated with more ADHD symptoms. Forns J, Dadvand P, Foraster M, Alvarez-Pedrerol M, Rivas I, López-Vicente M, Suades-Gonzalez E, Garcia-Esteban R, Esnaola M, Cirach M, Grellier J, Basagaña X, Querol X, Guxens M, Nieuwenhuijsen MJ, Sunyer J. 2016. Traffic-related air pollution, noise at school, and behavioral problems in Barcelona schoolchildren: a cross-sectional study. Environ Health Perspect

  7. Las motivaciones de los turistas LGBT en la elección de la ciudad de Barcelona

    OpenAIRE

    Prat Forga, Josep M.

    2015-01-01

    El turisme LGBT s’està consolidant com una important activitat dins del sector turístic. La ciutat de Barcelona no és aliena a aquesta tendència. No obstant això, la satisfacció obtinguda amb aquesta experiència depèn de diferents variables segons la motivació principal per realitzar aquest viatge. En aquest article s’analitzen aquests aspectes comparant els resultats de dues enquestes. La primera, a una mostra dels assistents al Festival Circuit, i la segona, a un grup de turistes LGBT alien...

  8. Los oficios y la endogamia laboral en las parroquias del obispado de Barcelona en 1605-1607 y 1625-

    OpenAIRE

    Prat, Jose María

    2011-01-01

    A partir dels documents episcopals barcelonins, on es detallen els impostos sobre les noces ("esposalles") ocorregudes a les parròquies del bisbat de Barcelona en els períodes compresos entre l'1 de maig de 1605 i el 30 d'abril de 1607, i el 1 maig 1625 i el 30 d'abril de 1627, en aquest article s'ha realitzat una anàlisi dels oficis dels contraents masculins, així com de les similituds relacionals existents entre l'ofici del nuvi i els del seu pare i el seu sogre, confirmant en tots dos perí...

  9. Integració d'una wiki al Campus Virtual de la Universitat Autònoma de Barcelona

    OpenAIRE

    Planas Rovira, Francesc

    2008-01-01

    Aquest projecte presenta una sol·lució per tal d'incorporar una eina wiki al Campus Virtual de la Universitat Autònoma de Barcelona. Enfront de la metodologia docent clàssica, la wiki oferirà funcionalitats orientades al treball col·laboratiu i fomentarà la participació de l'alumne. L'objectiu final és tenir una eina completament integrada al Campus Virtual, que aprofiti l'aplicatiu existent i s'interrelacioni amb la resta de mòduls presents. Este proyecto ofrece una solución para la integ...

  10. Projecte de les instal·lacions d'una nova planta per a ús docent ubicat a Barcelona

    OpenAIRE

    Bolao i Cano, Bernat

    2015-01-01

    El projecte te com a objectiu les instal·lacions d’una planta, de nova construcció, del col·legi les Teresianes situat a Barcelona. La planta està formada per cinc pisos amb aules i un poliesportiu obert a la planta baixa. S’hi faran les instal·lacions següents amb el compliment de les normatives i procurant la màxima eficiència: instal·lació de protecció contra incendis, instal·lació elèctrica, il·luminació interior, ventilació i sanejament.

  11. Update on fertility preservation from the Barcelona International Society for Fertility Preservation-ESHRE-ASRM 2015 expert meeting

    DEFF Research Database (Denmark)

    Martinez, Francisca; Yding Andersen, Claus

    2017-01-01

    on the need to provide counselling about currently available FP options to all individuals wishing to preserve their fertility. STUDY DESIGN, SIZE, DURATION: An international meeting with representatives from expert scientific societies involved in FP was held in Barcelona, Spain, in June 2015. PARTICIPANTS/MATERIALS......, SETTING, METHODS: Twenty international FP experts belonging to the American Society of Reproductive Medicine, ESHRE and the International Society of Fertility Preservation reviewed the literature up to June 2015 to be discussed at the meeting, and approved the final manuscript. At the time this manuscript...

  12. ¿Mercados, museos o malls? La gentrificación de los mercados municipales en Barcelona y Madrid

    OpenAIRE

    Adrián Hernández Cordero; Stoyanka Andreeva Eneva

    2016-01-01

    Los mercados públicos o municipales se están convirtien - do en equipamientos estratégicos en el nuevo escenario urbano. La transformación del modelo de consumo y ciudad en relación con los mercados todavía no ha sido suficientemente estudiada. El objetivo del presente documento consiste en analizar las mutaciones que ex - perimentan algunos mercados públicos a partir del estudio y compa - ración de las dos principales ciudades españolas: Barcelona y Madrid. Se busca mostrar ...

  13. War and Peace in the Chaco Boreal: ideas and proposals in the Revista Comercial Iberoamericana Mercurio of Barcelona

    Directory of Open Access Journals (Sweden)

    Gabriela Dalla-Corte Caballero

    2017-05-01

    Full Text Available The loss of the last Spanish colonies, produced in 1898, led the Catalan intellectuals to organize a new political, commercial and cultural with Latin Iberian entrepreneurs. With this goal was established in Barcelona in 1901 the Revista Comercial Iberoamericana Mercurio, published in which there was a particular flow of ideas and proposals among its directors and the authors in connection with the fighting erupted between Paraguay and Bolivia in 1932, called the Chaco War. The Catalan magazine was closed years later, in 1938, during the Spanish Civil War

  14. La Psicología en la Revista Médica de Barcelona: psicoterapia, higiene mental y moral

    OpenAIRE

    Mülberger, Annette; Balltondre Pla, Mònica; Montero-Pich, Òscar; Graus i Ferrer, Andrea; Fajula, Sara

    2016-01-01

    This historical study deals with the contributions made between 1924 and 1936 by the journal Revista Médica de Barcelona to the topic of mental care. Thereby we recognized the crucial role played by E. Mira y López and B. Rodríguez Arias and four different strategies sought by the journal to promote and influence the mental health of the population. The first level consists of the promotion of psychology as a source of health and as a medical field of specialization. In connection with this w...

  15. Convivencia y participación de jóvenes en Sant Boi de Llobregat (Barcelona)

    OpenAIRE

    Palou Julián, Berta; Rodríguez Lajo, Mercedes; Vilà Baños, Ruth

    2013-01-01

    El presente trabajo constituye un proceso de elaboración, aplicación y análisis de resultados de un estudio por encuesta realizado con la juventud del municipio de Sant Boi del Llobregat1 ubicado en la provincia de Barcelona. El objetivo del trabajo inicial fue hacer un diagnóstico del grado de convivencia y participación de la juventud de 14 a 16 años de edad, con la finalidad de poder fundamentar propuestas educativas de mejora en dichas áreas, tan necesarias para el desarrollo de una ciuda...

  16. Social-ecological perspective in the analysis of protected natural areas of the metropolitan area of Barcelona (Spain)

    International Nuclear Information System (INIS)

    Iago Otero, Armengol; Boada Junca, Marti

    2008-01-01

    Socio ecological approach tries to integrate natural sciences and social sciences to study reality from an interdisciplinary perspective. Under this point of view, the article analyses the environmental history in the municipality of Matadepera and studies the socio ecological heritage in Olzinelles valley. Through the two case studies we link socio ecological approach with the improvement of management and conservation of two natural protected areas in the Barcelona Metropolitan Region: Sant Llorenc del Munt i l'Obac Natural Park and Montnegre i el Corredor Park

  17. Utilización del hormigón con árido reciclado en la ciudad de Barcelona

    OpenAIRE

    Etxeberria Larrañaga, Miren

    2011-01-01

    Debido a la necesidad de introducir áridos reciclados en el mercado y concretamente en Barcelona, se realizó un exhaustivo trabajo experimental en el laboratorio de Materiales de Construcción donde se determinaron las propiedades físico- químico mecánico de los áridos reciclados producidos de las dos plantas más importantes pertenecientes a Gestora de Runes de Catalunya s.a. (GRC) y se analizó el comportamiento de hormigones fabricados con áridos gruesos reciclados. A partir de los resulta...

  18. Thorium fueled reactor

    Science.gov (United States)

    Sipaun, S.

    2017-01-01

    Current development in thorium fueled reactors shows that they can be designed to operate in the fast or thermal spectrum. The thorium/uranium fuel cycle converts fertile thorium-232 into fissile uranium-233, which fissions and releases energy. This paper analyses the characteristics of thorium fueled reactors and discusses the thermal reactor option. It is found that thorium fuel can be utilized in molten salt reactors through many configurations and designs. A balanced assessment on the feasibility of adopting one reactor technology versus another could lead to optimized benefits of having thorium resource.

  19. Light water reactor safety

    CERN Document Server

    Pershagen, B

    2013-01-01

    This book describes the principles and practices of reactor safety as applied to the design, regulation and operation of light water reactors, combining a historical approach with an up-to-date account of the safety, technology and operating experience of both pressurized water reactors and boiling water reactors. The introductory chapters set out the basic facts upon which the safety of light water reactors depend. The central section is devoted to the methods and results of safety analysis. The accidents at Three Mile Island and Chernobyl are reviewed and their implications for light wate

  20. Nuclear reactor physics

    CERN Document Server

    Stacey, Weston M

    2010-01-01

    Nuclear reactor physics is the core discipline of nuclear engineering. Nuclear reactors now account for a significant portion of the electrical power generated worldwide, and new power reactors with improved fuel cycles are being developed. At the same time, the past few decades have seen an ever-increasing number of industrial, medical, military, and research applications for nuclear reactors. The second edition of this successful comprehensive textbook and reference on basic and advanced nuclear reactor physics has been completely updated, revised and enlarged to include the latest developme

  1. Fundamentals of reactor chemistry

    International Nuclear Information System (INIS)

    Akatsu, Eiko

    1981-12-01

    In the Nuclear Engineering School of JAERI, many courses are presented for the people working in and around the nuclear reactors. The curricula of the courses contain also the subject material of chemistry. With reference to the foreign curricula, a plan of educational subject material of chemistry in the Nuclear Engineering School of JAERI was considered, and the fundamental part of reactor chemistry was reviewed in this report. Since the students of the Nuclear Engineering School are not chemists, the knowledge necessary in and around the nuclear reactors was emphasized in order to familiarize the students with the reactor chemistry. The teaching experience of the fundamentals of reactor chemistry is also given. (author)

  2. «There’s no more Progressive Party in Barcelona». Social experience and workers protest into the 1869 republican up-rising

    Directory of Open Access Journals (Sweden)

    Albert García Balañà

    2008-12-01

    Full Text Available This study aims to explain the 1869 Republican up-rising in Barcelona by adding an evidence unknown to the historiography of republicanism: its confluence with a massive cotton workers strike that paralyzed the first industry of the city from august to October in the aftermath of the armed fighting. So, the 1869 Republican up-rising in Barcelona can be seen as a relevant case study in order to understand some major issues on 1868-1874 Spain: the nature of the rank-and-file/leadership relationship into the republican movement; the social (and not only political sources of popular or plebeian unrest; and the so many faces of the «cuestión obrera» in industrial and liberal societies, as Barcelona had been since the 1830s.

  3. Una relación significativa: los clubes de lectura y las redes de bibliotecas en Medellín y Barcelona

    Directory of Open Access Journals (Sweden)

    Luis Carlos Toro Tamayo

    2013-01-01

    Full Text Available Para Juan José Arranz Martín, Director de Programas y Cooperación del Consorcio de Bibliotecas de Barcelona, la ciudad de Medellín – Colombia, y los programas que se desarrollan en sus redes de bibliotecas, son un ejemplo y la prueba de que los procesos sociales abordados con seriedad tienen sentido. Desde hace algunos años se viene haciendo un trabajo cooperado entre Medellín y Barcelona, que convoca a usuarios y miembros de las bibliotecas y los clubes de lectura de ambas ciudades en torno a la palabra escrita. Sobre esta experiencia, que es digna de conocer de primera mano, recurrimos a quien desde Barcelona lidera esta alianza estratégica entre dos lugares que por su proximidad idiomática y su interés por el conocimiento están produciendo cambios significativos en la sociedad.

  4. Generation III+ Reactor Portfolio

    International Nuclear Information System (INIS)

    2010-03-01

    While the power generation needs of utilities are unique and diverse, they are all faced with the double challenge of meeting growing electricity needs while curbing CO 2 emissions. To answer these diverse needs and help tackle this challenge, AREVA has developed several reactor models which are briefly described in this document: The EPR TM Reactor: designed on the basis of the Konvoi (Germany) and N4 (France) reactors, the EPRTM reactor is an evolutionary model designed to achieve best-in-class safety and operational performance levels. The ATMEA1 TM reactor: jointly designed by Mitsubishi Heavy Industries and AREVA through ATMEA, their common company. This reactor design benefits from the competencies and expertise of the two mother companies, which have commissioned close to 130 reactor units. The KERENA TM reactor: Designed on the basis of the most recent German BWR reactors (Gundremmingen) the KERENA TM reactor relies on proven technology while also including innovative, yet thoroughly tested, features. The optimal combination of active and passive safety systems for a boiling water reactor achieves a very low probability of severe accident

  5. Asistencia a clase y rendimiento académico en estudiantes de medicina: La experiencia de la Universidad Autónoma de Barcelona Lecture Attendance and Academic Achievement among Medical Students: The experience of the Autonomous University of Barcelona

    Directory of Open Access Journals (Sweden)

    Jorge Pérez

    2004-06-01

    Full Text Available Nuestro trabajo pretende establecer la posible relación entre asistencia a clase y rendimiento académico. Realizamos dos estudios en la Facultad de Medicina de la Universidad Autónoma de Barcelona. En el primero, encontramos que la asistencia a clase no se relacionaba con el superar o no una asignatura clínica fundamental de quinto curso pero sí se relacionaba con la obtención de las mejores notas. En un segundo estudio, con todas las asignaturas cursadas en la misma facultad, encontramos una asociación positiva mayoritaria entre asistencia a clase y rendimiento académico. Dicha relación fue especialmente patente en las asignaturas básicas de primer curso y en las de patologías médicas y quirúrgicas de los cursos clínicos.To determine whether or not there is a relation between lecture attendance and academic performance, we carried out two studies at the Faculty of Medicine of the Autonomous University of Barcelona. In the first, based on students studying medical pathology, no relation was found between attendance and success; however attendance was related to good marks. In the second study, based on students of all subjects in the curriculum, we found a positive correlation between attendance and examination results in most of the subjects, especially in the first year and in the subjects of medical and surgical pathology.

  6. Spinning fluids reactor

    Science.gov (United States)

    Miller, Jan D; Hupka, Jan; Aranowski, Robert

    2012-11-20

    A spinning fluids reactor, includes a reactor body (24) having a circular cross-section and a fluid contactor screen (26) within the reactor body (24). The fluid contactor screen (26) having a plurality of apertures and a circular cross-section concentric with the reactor body (24) for a length thus forming an inner volume (28) bound by the fluid contactor screen (26) and an outer volume (30) bound by the reactor body (24) and the fluid contactor screen (26). A primary inlet (20) can be operatively connected to the reactor body (24) and can be configured to produce flow-through first spinning flow of a first fluid within the inner volume (28). A secondary inlet (22) can similarly be operatively connected to the reactor body (24) and can be configured to produce a second flow of a second fluid within the outer volume (30) which is optionally spinning.

  7. Reactor power monitoring device

    International Nuclear Information System (INIS)

    Dogen, Ayumi; Ozawa, Michihiro.

    1983-01-01

    Purpose: To significantly improve the working efficiency of a nuclear reactor by reflecting the control rod history effect on thermal variants required for the monitoring of the reactor operation. Constitution: An incore power distribution calculation section reads the incore neutron fluxes detected by neutron detectors disposed in the reactor to calculate the incore power distribution. A burnup degree distribution calculation section calculates the burnup degree distribution in the reactor based on the thus calculated incore power distribution. A control rod history date store device supplied with the burnup degree distribution renews the stored control rod history data based on the present control rod pattern and the burnup degree distribution. Then, thermal variants of the nuclear reactor are calculated based on the thus renewed control rod history data. Since the control rod history effect is reflected on the thermal variants required for the monitoring of the reactor operation, the working efficiency of the nuclear reactor can be improved significantly. (Seki, T.)

  8. Reactor power control device

    International Nuclear Information System (INIS)

    Ishii, Yoshihiko; Arita, Setsuo; Miyamoto, Yoshiyuki; Fukazawa, Yukihisa; Ishii, Kazuhiko

    1998-01-01

    The present invention provides a reactor power control device capable of enhancing an operation efficiency while keeping high reliability and safety in a BWR type nuclear power plant. Namely, the device of the present invention comprises (1) a means for inputting a set value of a generator power and a set value of a reactor power, (2) a means for controlling the reactor power to either smaller one of the reactor power corresponding to the set value of the generator power and the set value of the reactor power. With such procedures, even if the nuclear power plant is set so as to operate it to make the reactor power 100%, when the generator power reaches the upper limit, the reactor power is controlled with a preference given to the upper limit value of the generator power. Accordingly, safety and reliability are not deteriorated. The operation efficiency of the plant can be improved. (I.S.)

  9. One piece reactor removal

    International Nuclear Information System (INIS)

    Chia, Wei-Min; Wang, Song-Feng

    1993-01-01

    The strategy of Taiwan Research Reactor Renewal plan is to remove the old reactor block with One Piece Reactor Removal (OPRR) method for installing a new research reactor in original building. In this paper, the engineering design of each transportation works including the work method, the major equipments, the design policy and design criteria is described and discussed. In addition, to ensure the reactor block is safety transported for storage and to guarantee the integrity of reactor base mat is maintained for new reactor, operation safety is drawn special attention, particularly under seismic condition, to warrant safe operation of OPRR. ALARA principle and Below Regulatory Concern (BRC) practice were also incorporated in the planning to minimize the collective dose and the total amount of radioactive wastes. All these activities are introduced in this paper. (J.P.N.)

  10. CHANGING PATTERS OF WATER CONSUMPTION IN THE SUBURBAN BARCELONA: LIFESTILES AND WELFARE AS EXPLANATORY FACTORS

    Directory of Open Access Journals (Sweden)

    Elena Domene

    2014-01-01

    Full Text Available Los jardines atlánticos y las piscinas constituyen una de las características más relevantes de esta nueva fase en la historia del proceso de urbanización en la Región Metropolitana de Barcelona, coincidiendo con la “locura” constructora por la cual la tipología de urbanización tradicionalmente compacta típica de las culturas mediterráneas pierde terreno frente a los tipos de urbanización más dispersos, típicamente característicos de los países anglosajones. El cambio en el modelo urbano también conlleva una constatable relación con los cambios en los estilos de vida cada vez más típicos de los paisajes suburbanos de muchas áreas de la Europa atlántica y sobre todo de Norte América. Casas en urbanizaciones de baja densidad, con jardines y piscinas están directamente asociadas con una mejor calidad de vida y considerados como bienes posicionales, dando a sus propietarios un estatus y prestigio que no se encuentra en otras formas urbanas. En este documento, por tanto, ilustraré como estos nuevos “estilos de vida suburbanos” que están relacionados con un intenso consumo de agua están ganando terreno en un contexto geográfico, social y cultural que tradicionalmente ha sido bastante conservador en el uso de este recurso. También mostraré como estos nuevos estilos de vida están asimismo interrelacionados con un fuerte componente de nivel de renta. De tal forma, hogares de alta renta prefieren y se pueden permitir jardines atlánticos más consumidores de agua, y con piscina, mientras que los hogares de baja renta tienen que recurrir a especies más adaptadas climáticamente, en lo que constituye una creciente diferenciación socioespacial.

  11. Presenting SAPUSS: Solving Aerosol Problem by Using Synergistic Strategies in Barcelona, Spain

    Directory of Open Access Journals (Sweden)

    M. Dall'Osto

    2013-09-01

    Full Text Available This paper presents the summary of the key objectives, instrumentation and logistic details, goals, and initial scientific findings of the European Marie Curie Action SAPUSS project carried out in the western Mediterranean Basin (WMB during September–October in autumn 2010. The key SAPUSS objective is to deduce aerosol source characteristics and to understand the atmospheric processes responsible for their generations and transformations – both horizontally and vertically in the Mediterranean urban environment. In order to achieve so, the unique approach of SAPUSS is the concurrent measurements of aerosols with multiple techniques occurring simultaneously in six monitoring sites around the city of Barcelona (NE Spain: a main road traffic site, two urban background sites, a regional background site and two urban tower sites (150 m and 545 m above sea level, 150 m and 80 m above ground, respectively. SAPUSS allows us to advance our knowledge sensibly of the atmospheric chemistry and physics of the urban Mediterranean environment. This is well achieved only because of both the three dimensional spatial scale and the high sampling time resolution used. During SAPUSS different meteorological regimes were encountered, including warm Saharan, cold Atlantic, wet European and stagnant regional ones. The different meteorology of such regimes is herein described. Additionally, we report the trends of the parameters regulated by air quality purposes (both gaseous and aerosol mass concentrations; and we also compare the six monitoring sites. High levels of traffic-related gaseous pollutants were measured at the urban ground level monitoring sites, whereas layers of tropospheric ozone were recorded at tower levels. Particularly, tower level night-time average ozone concentrations (80 ± 25 μg m−3 were up to double compared to ground level ones. The examination of the vertical profiles clearly shows the predominant influence of NOx on ozone

  12. XXIX International Meeting on Fundamental Physics, Sitges, Barcelona, Spain, 5-9 February, 2001

    International Nuclear Information System (INIS)

    Fonseca, V.; Dobado, A.

    2001-01-01

    The XXIX International Winter Meeting on Fundamental Physics took place in Sitges, Barcelona, Spain, from 5 to 9 February, 2001. The meeting was organized by the Universidad Complutense de Madrid (UCM) in collaboration with CIEMAT. It was supported by the Programa Nacional de Fisica de Altas Energias, by UCM and CIEMAT. As in previous editions, it brought together researchers working in experimental and theoretical Particle and Astroparticle Physics. More than seventy physicists from several countries participated in the Meeting. General talks, most recent results and time for physics discussions were considered in the program. In parallel to the development of the Meeting several other events took place. These events included a meeting to study the future of the Spanish Program of Advanced Studies in Theoretical High Energy Physics, an informal meeting to study the future for detection of high energy neutrino beams with underground detectors in the Canary Islands and another one concerning the PDGE /Proyecto Data Grid Espana). In addition we had the last day a special seminar in the honour of the 60th anniversary of Professor Yndurain. Francisco J. Yndurain played a leading role in the development of High Energy Physics in Spain and all over he was one of the founders of the International Meeting on Fundamental Physics in 1973 (in those days called International Winter Meeting on Fundamental Physics). The efficient assistance of M. Fatas in the organization of the conference is warmly appreciated. We thank R. Pascual for helping us to find the excellent hotel Calipolis where the meeting took place. We are deeply indebted to M. J. Josa and to the HEGRA people form the UCM for their valuable technical assistance along the entire process of preparing the Meeting. We also thank J. C. Gonzalez and M. Lopez for their effort in the preparation of these proceedings and finally to p. Seoane for the design of the poster, advertisements and the logo of the Meeting. Finally

  13. Spatial variability of trace elements and sources for improved exposure assessment in Barcelona

    Science.gov (United States)

    Minguillón, María Cruz; Cirach, Marta; Hoek, Gerard; Brunekreef, Bert; Tsai, Ming; de Hoogh, Kees; Jedynska, Aleksandra; Kooter, Ingeborg M.; Nieuwenhuijsen, Mark; Querol, Xavier

    2014-06-01

    Trace and major elements concentrations in PM10 and PM2.5 were measured at 20 sites spread in the Barcelona metropolitan area (1 rural background, 6 urban background, 13 road traffic sites) and at 1 reference site. Three 2-week samples per site and size fraction were collected during 2009 using low volume samplers, adding a total of 120 samples. Collected samples were analysed for elemental composition using Energy Dispersive X-ray fluorescence (XRF). EC, OC, and hopanes and steranes concentrations in PM2.5 were determined. Positive Matrix Factorisation (PMF) model was used for a source apportionment analysis. The work was performed as part of the ESCAPE project. Elements were found in concentrations within the usual range in Spanish urban areas. Mineral elements were measured in higher concentrations during the warm season, due to enhanced resuspension; concentrations of fueloil combustion elements were also higher in summer. Elements in higher concentration at the traffic sites were: Ba, Cr, Cu, Fe, Mn, Mo, Pb, Sn, Zn and Zr. Spatial variations related to non-traffic sources were observed for concentrations of Br, Cl, K, and Na (sea salt origin) and Ni, V and S (shipping emissions), which were higher at the coastal sites, as well as for Zn and Pb, higher at sites closer to industrial facilities. Five common sources for PM10 and PM2.5 were identified by PMF: road traffic (with tracers Ba, Cr, Cu, Fe, Mo and Zn); fueloil combustion (Ni and V); secondary sulphate; industry (Pb and Zn); and mineral source (Al, Ca, Mg, Si, Sr and Ti). A marine aerosol source, a mixture of sea salt with aged anthropogenic aerosols, was found only in PM10. EC, hopanes and steranes concentrations correlate strongly with the PM10 road traffic source contributions, being hence all attributed to the same source. OC may arise from other sources in addition to road traffic and have a high contribution of secondary OC. Significant spatial and temporal variation in the PM2.5 and PM10 elemental

  14. Oral health care activities performed by caregivers for institutionalized elderly in Barcelona-Spain

    Science.gov (United States)

    Cornejo-Ovalle, Marco; Costa-de-Lima, Kenio; Pérez, Glória; Borrell, Carme; Casals-Peidro, Elías

    2013-01-01

    Objectives: To describe the frequency of brushing teeth and cleaning of dentures, performed by caregivers, for institutionalized elderly people. Methods: A cross-sectional study in a sample of 196 caregivers of 31 health centers in Barcelona. The dependent variables were frequency of dental brushing and frequency of cleaning of dentures of the elderly by caregivers. The independent variables were characteristics of caregivers and institutions. We performed bivariate and multivariate descriptive analyses. Robust Poisson regression models were fitted to determine factors associated with the dependent variables and to assess the strength of the association. Results: 83% of caregivers were women, 79% worked on more than one shift, 42% worked only out of necessity, 92% were trained to care for elderly persons, 67% were trained in oral hygiene care for the elderly, and 73% recognized the existence of institutional protocols on oral health among residents. The variables explaining the lower frequency of brushing teeth by caregivers for the elderly, adjusted for the workload, were: no training in the care of elderly persons (PRa 1.7 CI95%: 1.6-1.8), not fully agreeing with the importance of oral health care of the elderly (PRa 2.5 CI95%: 1.5-4.1) and not knowing of the existence of oral health protocols (PRa 1.8 CI95%: 1.2-2.6). The variables that explain the lower frequency of cleaning dentures, adjusted for the workload, were lack of training in elderly care (PRa 1.7 CI95%: 1.3-1.9) and not knowing of the existence of protocols (PRa 3.7 CI95%: 1.6-8.7). Conclusion: The majority of caregivers perform activities of oral health care for the elderly at least once per day. The frequency of this care depends mainly on whether caregivers are trained to perform these activities, the importance given to oral health, the workload of caregivers and the existence of institutional protocols on oral health of institutionalized elderly persons. Key words:Institutionalized elderly

  15. Urban and peri-urban flood impact change: the case of the Metropolitan Area of Barcelona

    Science.gov (United States)

    Cortès, Maria; Gilabert, Joan; Llasat-Botija, Montserrat; Marcos, Raül; Llasat, Maria del Carmen

    2017-04-01

    Floods are the most important natural hazard in the world. Nowadays, mitigation and adaptation strategies to reduce the impact that climate change will have on them, are a priority in most government agendas. Recent reports from the IPCC (2012, 2014) still show significant uncertainty associated with future projections of precipitation extremes. This uncertainty is higher when referred to floods and even larger when interactions with society and the changes in vulnerability are considered. Consequently, there is now a call to treat floods from a holistic perspective that integrates bottom-up (from impact and vulnerability) and top-down (from hazard) approaches (Hall et al., 2014). The study of flood risk in urban and peri-urban areas is complex and involves multiple factors. This is the case of the Metropolitan Area of Barcelona (AMB), which concentrates 43% of total population of Catalonia in less than 2% of the whole territory. The impervious soil has grown more than 200% from 1956 to 2009 (resulting in higher values of runoff), the population has increased more than 80% in the same period and, simultaneously, an improvement of the drainage system and flood prevention has been developed. As a result, we have seen that the flood risk evolution in the area holds a strong link to these human changes. Actually, floods in this region are usually due to drainage problems, flash floods in ungauged torrential catchments and, only in some occasions, river floods are produced (i.e. the Llobregat River on September 1971). But, in all the cases they are due to heavy precipitations. The main objective of the contribution is assessing the relationship between precipitation in the AMB and the social impacts produced. In order to do it, different impact indicators have been proposed, such as the population affected or the duration of the flood event (Merz et al., 2010). These indicators have been implemented for the different cases analyzed, which affected AMB for the period

  16. Improving the modeling of road dust levels for Barcelona at urban scale and street level

    Science.gov (United States)

    Amato, Fulvio; Zandveld, Peter; Keuken, Menno; Jonkers, Sander; Querol, Xavier; Reche, Cristina; Denier van der Gon, Hugo A. C.; Schaap, Martijn

    2016-01-01

    Road dust emission is an emerging issue in air quality due to the lack of remediation measures in contrast to vehicle exhaust emissions. The evidence of receptor modeling studies allows for quantifying impact on a few receptors, but the high cost of PM chemical speciation data and the questionable representativeness of single monitoring sites, limit considerably the development of population exposure estimates and epidemiologic studies based on georeferenced data. This study attempts to initiate and promote urban-scale dispersion modeling for road dust emissions, which will allow for a more robust estimate of population exposure and health outcomes. The TNO URBIS (URBan Information System) model was applied in the city of Barcelona, implementing a Gaussian line source and a street canyon dispersion model, together with new experimental estimates of road dust emission factors and algorithm to describe the time variability. Annual, daily and hourly road dust contributions were simulated and validated against observation of PM10, mineral dust and hourly PM2.5-10 concentrations. Results show that road dust contributed 9-15% to PM10 levels at background sites, and 23-44% at traffic sites. Highest contributions were modeled in the commercial/residential district where most of population live and work (Eixample) structured by 120 m wide square blocks, separated by roads with >10,000 vehicles per day. Street level contributions rise up to 20 μg/m3 (96% of roads) and an additional 3% of roads within 20-40 μg/m3. Hourly simulations of road dust contributions revealed to benefit from the implementation of the new emission module (Amato et al., 2012), able to describe the exponential recovery of road dust emission potential after rain events, when compared to common approach such as the use of constant emission factor or an ON/OFF approach. Correlation coefficients with observed data varied from 0.61, 0.58 and 0.43 for annual, daily and hourly means, respectively, revealing

  17. El impacto de las externalidades producidas por el turismo sobre los valores inmobiliarios y la segmentación del mercado residencial en Barcelona

    OpenAIRE

    Pérez Bastidas, Victoria Beatriz; Marmolejo Duarte, Carlos Ramiro

    2014-01-01

    Esta investigación estudia el impacto de las externalidades que son generadas por los flujos y atracciones turísticas sobre la formación de los valores inmobiliarios de los distritos de Ciutat Vella, Eixample, Sants Montjuic y Sant Martí, y la segmentación residencial en Barcelona. La hipótesis planteada es que los corredores y atracciones turísticas en Barcelona crean externalidades que inciden positivamente sobre el valor de los inmuebles turísticos y de forma contraria sobre los residentes...

  18. Estudi i ambientalització de la gestió dels residus dels serveis de restauració fast food del Zoo de Barcelona

    OpenAIRE

    Argüello Ferrer, Daniel

    2016-01-01

    En els darrers anys, el Zoo de Barcelona no només té en compte la seva activitat com a conservador d’espècies, sinó que realitza funcions com les d’educador ambiental i promotor de la sostenibilitat. Per tal d’aconseguir avançar en aquestes activitats, aquest projecte es presenta com a una oportunitat per a millorar un dels serveis associats al Zoo de Barcelona més importants, els serveis de Restauració. Aquest projecte es centra en l’estudi del metabolisme de la matèria en quant a la utilitz...

  19. Piedad e ilustración en relación armónica. Josep Climent i Avinent, obispo de Barcelona, 1766-1775

    OpenAIRE

    Smidt, A.J.

    2002-01-01

    La autora analiza el pensamiento reformista del emblemático Josep Climent i Avinent (1706- 1781), obispo de Barcelona de 1766 a 1775 y uno de los principales representantes de la Ilustración española. Un movimiento caracterizado, a diferencia de su homónimo francés, por la coexistencia de la razón y de la fe en sus postulados. L'autora analitza el pensament reformista de l'emblemàtic Josep Climent i Avinent (1706-1781), bisbe de Barcelona de 1776 a 1775 i un dels principals representants d...

  20. urBANALització. La producció residencial de baixa densitat a la província de Barcelona 1985-2001

    OpenAIRE

    Muñoz Ramírez, Francesc

    2004-01-01

    La tesi doctoral planteja una anàlisi i una avaluació territorial del creixement de l'habitatge unifamiliar a la província de Barcelona durant un període de 17 anys, tot diferenciant els llindars d'especialització del paisatge residencial a partir de la localització d'habitatges aïllats i adossats a diferents municipis. La tesi demostra que, tot i que el fenomen de l'habitatge unifamiliar no és nou a la regió de Barcelona, des de finals dels anys vuitanta adquireix una dimensió nova en funció...

  1. Species of root-knot nematodes and fungal egg parasites recovered from vegetables in Almería and Barcelona, Spain

    OpenAIRE

    Verdejo Lucas, Soledad; Ornat Longarón, Cèsar; Sorribas Royo, Francisco Javier; Stchigel, Alberto Miguel

    2002-01-01

    Intensive vegetable production areas were surveyed in the provinces of Almería (35 sites) and Barcelona (22 sites), Spain, to determine the incidence and identity of Meloidogyne spp. and of fungal parasites of nematode eggs. Two species of Meloidogyne were found in Almería—M. javanica (63% of the samples) and M. incognita (31%). Three species were found in Barcelona, including M. incognita (50%), M. javanica (36%), and M. arenaria (14%). Solanaceous crops supported larger (P < 0.05) nematode ...

  2. Un artista cortesano en la Barcelona de Carlos III de Austria: apuntes prosopográficos sobre Andrea Vaccaro II

    Directory of Open Access Journals (Sweden)

    Quirós Rosado, Roberto

    2016-09-01

    Full Text Available At the beginning of the 18th century Barcelona was a principal entry point for the introduction of Italian courtly culture in Spain during the brief reign of Carlos III of Habsburg. This study analyzes the presence of the little-known Neapolitan painter Andrea Vaccaro II in Cataluña, and his connections with the Royal Chamber and the Spanish Habsburg ministry, as well as the concession of offices in Reame as payment for palace services.La diversidad de focos de introducción de la cultura de corte italiana en los inicios del siglo XVIII español obliga a indagar en la circulación de artistas napolitanos en la Barcelona de Carlos III de Austria. Bajo esta premisa, en el estudio se analiza la estancia catalana del desconocido pintor napolitano Andrea Vaccaro II, sus lazos con la Real Cámara y el ministerio español del monarca Habsburgo, así como la concesión de oficios en los tribunales de Nápoles como pago por servicios en palacio.

  3. Ceremonia y conflicto: Entradas reales en Barcelona en el contexto de la Guerra Civil Catalana (1460-1473

    Directory of Open Access Journals (Sweden)

    Raufast Chico, Miguel

    2008-12-01

    Full Text Available This study examines the royal entry ceremonies celebrated in Barcelona between 1460 and 1473, in the light of their meaning and importance in relation to the unsettled period marked by the Catalan Civil War (1462-1472. Starting from the premise that these sort of events are likely to reflect the sociopolitical reality in which they occur, it sets out to determine just how far the receptions offered to the monarchy by the city during these years can contribute towards explaining the origin, development and conclusion of the warlike conflict which set the institutions of the Principate against John II.

    Este estudio recorre las ceremonias de entrada real que se celebraron en Barcelona, entre 1460 y 1473, a la luz de su significación y trascendencia en relación al conflictivo período marcado por la Guerra Civil Catalana (1462-1472. Partiendo de la premisa de que este tipo de eventos son susceptibles de reflejar la realidad sociopolítica en la que tienen lugar, se intenta aquí determinar en qué medida las recepciones ofrecidas por la ciudad a la monarquía durante estos años pueden contribuir a explicar la génesis, desarrollo y conclusión del conflicto bélico que enfrentó a las instituciones del Principado con Juan II.

  4. Flujos de agua, flujos de capital: sistemas de abastecimiento y gobernanza del agua en Madrid y Barcelona

    Directory of Open Access Journals (Sweden)

    Hug March

    2010-01-01

    Full Text Available El agua es un elemento clave para el sustento del metabolismo de las ciudades. Sin embargo, los orígenes, métodos de «producción», y modelos de gestión del flujo de urbano de agua pueden variar geográficamente. En este artículo se comparan los sistemas de abastecimiento y gestión de agua potable en las dos principales regiones metropolitanas del Estado: Barcelona y Madrid. En Barcelona, el agua procede de distintas fuentes entre las cuales destaca la desalación, vigente desde el verano de 2009. En Madrid, el sistema de abastecimiento depende fuertemente de las aguas superficiales procedentes de diversos ríos que atraviesan la Comunidad. Por lo que respeta a la gestión de estos sistemas el presente trabajo hace hincapié sobre las importantes diferencias que giran entorno al distinto balance entre participación pública y privada en el ciclo del agua en ambas áreas. Finalmente el artículo reflexiona sobre los puntos de convergencia y divergencia entre ambos modelos de abastecimiento así como sus perspectivas de futuro.

  5. De la perrera municipal al centro de acogida de animales de compañía de Barcelona

    Directory of Open Access Journals (Sweden)

    Peracho V.

    2003-01-01

    Full Text Available El objetivo de este trabajo es presentar la evolución de la política y los servicios de salud pública relativos a los animales de compañía en la ciudad de Barcelona de 1983 a 2001. Partiendo de una actividad centrada en la custodia y la eutanasia de los animales sin dueño de Barcelona, y ofertando también servicios al resto de la provincia, se formula un Plan de Animales de Compañía para la ciudad y se reorienta la actividad, centrándola en los límites estrictos del municipio y el estímulo de la adopción. Se busca la participación de profesionales y entidades proteccionistas, se remodelan las instalaciones, se fomenta la tenencia responsable de animales, se crean colonias urbanas controladas de gatos y se estimulan las adopciones, redefiniendo la actividad con una mayor orientación al cliente. La evolución de la actividad desde 1998 refleja una notable disminución en el volumen de animales custodiados, así como en la proporción de los sacrificados. Esta disminución puede reflejar una mejora en el problema de los animales abandonados. Estos cambios se han traducido en una modificación positiva de las relaciones con los medios de comunicación y las entidades proteccionistas.

  6. ¿Mercados, museos o malls? La gentrificación de los mercados municipales en Barcelona y Madrid

    Directory of Open Access Journals (Sweden)

    Adrián Hernández Cordero

    2016-01-01

    Full Text Available Los mercados públicos o municipales se están convirtien - do en equipamientos estratégicos en el nuevo escenario urbano. La transformación del modelo de consumo y ciudad en relación con los mercados todavía no ha sido suficientemente estudiada. El objetivo del presente documento consiste en analizar las mutaciones que ex - perimentan algunos mercados públicos a partir del estudio y compa - ración de las dos principales ciudades españolas: Barcelona y Madrid. Se busca mostrar que a pesar de las diferencias en los modelos de intervención y gestión se producen patrones similares: los mercados turistificados y los mercados- mall . Primero se revisan las discusiones teóricas en torno al concepto de gentrificación comercial. Después, se analizan las políticas públicas en Madrid y Barcelona respecto a los mercados municipales. Finalmente, se estudian cuatro mercados, dos en cada ciudad, para mostrar las transformaciones que experimentan.

  7. Reactor coolant pump for a nuclear reactor

    International Nuclear Information System (INIS)

    Burkhardt, W.; Richter, G.

    1976-01-01

    The invention deals with disengaging the coupling of a reactor coolant pump of a nuclear reactor feeding pressurized coolant. The disengaging coupling has two parts joined by bolts, at least one of them containing a driving agent within a bore. This is provided with a speed-depending ignition device in such manner that, if the critical speed is reached, the driving charge is ignited and the coupling is disengaged by destroying the bolts. (UWI) [de

  8. Neutron fluxes in test reactors

    Energy Technology Data Exchange (ETDEWEB)

    Youinou, Gilles Jean-Michel [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-01-01

    Communicate the fact that high-power water-cooled test reactors such as the Advanced Test Reactor (ATR), the High Flux Isotope Reactor (HFIR) or the Jules Horowitz Reactor (JHR) cannot provide fast flux levels as high as sodium-cooled fast test reactors. The memo first presents some basics physics considerations about neutron fluxes in test reactors and then uses ATR, HFIR and JHR as an illustration of the performance of modern high-power water-cooled test reactors.

  9. Thai research reactor

    International Nuclear Information System (INIS)

    Aramrattana, M.

    1987-01-01

    The Office of Atomic Energy for Peace (OAEP) was established in 1962, as a reactor center, by the virtue of the Atomic Energy for Peace Act, under operational policy and authority of the Thai Atomic Energy for Peace Commission (TAEPC); and under administration of Ministry of Science, Technology and Energy. It owns and operates the only Thai Research Reactor (TRR-1/M1). The TRR-1/M1 is a mixed reactor system constituting of the old MTR type swimming pool, irradiation facilities and cooling system; and TRIGA Mark III core and control instrumentation. The general performance of TRR-1/M1 is summarized in Table I. The safe operation of TRR-1/M1 is regulated by Reactor Safety Committee (RSC), established under TAEPC, and Health Physics Group of OAEP. The RCS has responsibility and duty to review of and make recommendations on Reactor Standing Orders, Reactor Operation Procedures, Reactor Core Loading and Requests for Reactor Experiments. In addition,there also exist of Emergency Procedures which is administered by OAEP. The Reactor Operation Procedures constitute of reactor operating procedures, system operating procedures and reactor maintenance procedures. At the level of reactor routine operating procedures, there is a set of Specifications on Safety and Operation Limits and Code of Practice from which reactor shift supervisor and operators must follow in order to assure the safe operation of TRR-1/M1. Table II is the summary of such specifications. The OAEP is now upgrading certain major components of the TRR-1/M1 such as the cooling system, the ventilation system and monitoring equipment to ensure their adequately safe and reliable performance under normal and emergency conditions. Furthermore, the International Atomic Energy Agency has been providing assistance in areas of operation and maintenance and safety analysis. (author)

  10. Hybrid reactors. [Fuel cycle

    Energy Technology Data Exchange (ETDEWEB)

    Moir, R.W.

    1980-09-09

    The rationale for hybrid fusion-fission reactors is the production of fissile fuel for fission reactors. A new class of reactor, the fission-suppressed hybrid promises unusually good safety features as well as the ability to support 25 light-water reactors of the same nuclear power rating, or even more high-conversion-ratio reactors such as the heavy-water type. One 4000-MW nuclear hybrid can produce 7200 kg of /sup 233/U per year. To obtain good economics, injector efficiency times plasma gain (eta/sub i/Q) should be greater than 2, the wall load should be greater than 1 MW.m/sup -2/, and the hybrid should cost less than 6 times the cost of a light-water reactor. Introduction rates for the fission-suppressed hybrid are usually rapid.

  11. Fast Spectrum Reactors

    CERN Document Server

    Todd, Donald; Tsvetkov, Pavel

    2012-01-01

    Fast Spectrum Reactors presents a detailed overview of world-wide technology contributing to the development of fast spectrum reactors. With a unique focus on the capabilities of fast spectrum reactors to address nuclear waste transmutation issues, in addition to the well-known capabilities of breeding new fuel, this volume describes how fast spectrum reactors contribute to the wide application of nuclear power systems to serve the global nuclear renaissance while minimizing nuclear proliferation concerns. Readers will find an introduction to the sustainable development of nuclear energy and the role of fast reactors, in addition to an economic analysis of nuclear reactors. A section devoted to neutronics offers the current trends in nuclear design, such as performance parameters and the optimization of advanced power systems. The latest findings on fuel management, partitioning and transmutation include the physics, efficiency and strategies of transmutation, homogeneous and heterogeneous recycling, in addit...

  12. Multipurpose research reactors

    International Nuclear Information System (INIS)

    1988-01-01

    The international symposium on the utilization of multipurpose research reactors and related international co-operation was organized by the IAEA to provide for information exchange on current uses of research reactors and international co-operative projects. The symposium was attended by about 140 participants from 36 countries and two international organizations. There were 49 oral presentations of papers and 24 poster presentations. The presentations were divided into 7 sessions devoted to the following topics: neutron beam research and applications of neutron scattering (6 papers and 1 poster), reactor engineering (6 papers and 5 posters), irradiation testing of fuel and material for fission and fusion reactors (6 papers and 10 posters), research reactor utilization programmes (13 papers and 4 posters), neutron capture therapy (4 papers), neutron activation analysis (3 papers and 4 posters), application of small reactors in research and training (11 papers). A separate abstract was prepared for each of these papers. Refs, figs and tabs

  13. Reactor Engineering Division annual report

    International Nuclear Information System (INIS)

    Matsuura, Shojiro; Nakahara, Yasuaki; Takano, Hideki

    1982-09-01

    Research and development activities in the Division of Reactor Engineering in fiscal 1981 are described. The work of the Division is closely related to development of multipurpose Very High Temperature Gas Cooled Reactor and fusion reactor, and development of Liquid Metal Fast Breeder Reactor carried out by Power Reactor and Nuclear Fuel Development Corporation. Contents of the report are achievements in fields such as nuclear data and group constants, theoretical method and code development, integral experiment and analysis, shielding, reactor and nuclear instrumentation, reactor control and diagnosis, and fusion reactor technology, and activities of the Committee on Reactor Physics. (author)

  14. Reactor Engineering Department annual report

    International Nuclear Information System (INIS)

    1985-08-01

    Research and development activities in the Department of Reactor Engineering in fiscal 1984 are described. The work of the Department is closely related to development of multipurpose Very High Temperature Gas Cooled Reactor and Fusion Reactor, and development of Liquid Metal Fast Breeder Reactor carried out by Power Reactor and Nuclear Fuel Development Corporation. Contents of the report are achievements in fields such as nuclear data and group constants, theoretical method and code development, reactor physics experiment and analysis, fusion neutronics, shielding, reactor and nuclear instrumentation, reactor control and diagnosis, safeguards technology, and activities of the Committee on Reactor Physics. (author)

  15. Spectral shift reactor control method

    International Nuclear Information System (INIS)

    Impink, A.J. Jr.

    1981-01-01

    A method of operating a nuclear reactor having a core and coolant displacer elements arranged in the core wherein is established a reator coolant temperature set point at which it is desired to operate said reactor and first reactor coolant temperature band limits are provided within which said set point is located and it is desired to operate said reactor charactrized in that said reactor coolant displacer elements are moved relative to the reactor core for adjusting the volume of reactor coolant in said core as said reactor coolant temperature approaches said first band limits thereby to maintain said reactor coolant temperature near said set point and within said first band limits

  16. De la perrera municipal al centro de acogida de animales de compañía de Barcelona From the municipal dog pound to the pet shelter in Barcelona, Spain

    Directory of Open Access Journals (Sweden)

    V. Peracho

    2003-12-01

    Full Text Available El objetivo de este trabajo es presentar la evolución de la política y los servicios de salud pública relativos a los animales de compañía en la ciudad de Barcelona de 1983 a 2001. Partiendo de una actividad centrada en la custodia y la eutanasia de los animales sin dueño de Barcelona, y ofertando también servicios al resto de la provincia, se formula un Plan de Animales de Compañía para la ciudad y se reorienta la actividad, centrándola en los límites estrictos del municipio y el estímulo de la adopción. Se busca la participación de profesionales y entidades proteccionistas, se remodelan las instalaciones, se fomenta la tenencia responsable de animales, se crean colonias urbanas controladas de gatos y se estimulan las adopciones, redefiniendo la actividad con una mayor orientación al cliente. La evolución de la actividad desde 1998 refleja una notable disminución en el volumen de animales custodiados, así como en la proporción de los sacrificados. Esta disminución puede reflejar una mejora en el problema de los animales abandonados. Estos cambios se han traducido en una modificación positiva de las relaciones con los medios de comunicación y las entidades proteccionistas.This article aims to present changes in public health policy and services related to pet dogs and cats in the city of Barcelona from 1983 to 2001. Initially the center's activity was limited to the custody and euthanasia of stray animals, serving not only the city but also the rest of the province. With the formulation of a city Plan for Pet Animals, the activities were redirected, concentrating on services within the city limits and stimulating adoption. Participation of both professional and humane organizations was sought, premises were renovated, responsible ownership of animals was promoted, controlled urban colonies of cats were established, and adoptions become the cornerstone of policy, centering the activity of the shelter toward its clients

  17. Seals in nuclear reactors

    International Nuclear Information System (INIS)

    1979-01-01

    The aim of this invention is the provision of improved seals for reactor vessels in which fuel assemblies are located together with inlets and outlets for the circulation of a coolant. The object is to provide a seal arrangement for the rotatable plugs of nuclear reactor closure heads which has good sealing capacities over a wide gap during operation of the reactor but which also permits uninhibited rotation of the plugs for maintenance. (U.K.)

  18. Power reactors operational diagnosis

    International Nuclear Information System (INIS)

    Dach, K.; Pecinka, L.

    1976-01-01

    The definition of reactor operational diagnostics is presented and the fundamental trends of research are determined. The possible sources of power reactor malfunctions, the methods of defect detection, the data evaluation and the analysis of the results are discussed in detail. In view of scarcity of a theoretical basis and of insufficient in-core instrumentation, operational diagnostics cannot be as yet incorporated in a computer-aided reactor control system. (author)

  19. Pressurised water reactor operation

    International Nuclear Information System (INIS)

    Birnie, S.; Lamonby, J.K.

    1987-01-01

    The operation of a pressurized water reactor (PWR) is described with respect to the procedure for a unit start-up. The systems details and numerical data are for a four loop PWR station of the design proposed for Sizewell-'B', United Kingdom. A description is given of: the initial conditions, filling the reactor coolant system (RCS), heat-up and pressurisation of the RCS, secondary system preparations, reactor start-up, and reactivity control at power. (UK)

  20. Reactor BR2

    International Nuclear Information System (INIS)

    Gubel, P.

    2000-01-01

    The BR2 reactor is still SCK-CEN's most important nuclear facility. After an extensive refurbishment to compensate for the ageing of the installation, the reactor was restarted in April 1997. Various aspects concerning the operation of the BR2 Reactor, the utilisation of the CALLISTO loop and the irradiation programme, the BR2 R and D programme and the production of isotopes and of NTD-silicon are discussed. Progress and achievements in 1999 are reported

  1. Reactor BR2

    Energy Technology Data Exchange (ETDEWEB)

    Gubel, P

    2000-07-01

    The BR2 reactor is still SCK-CEN's most important nuclear facility. After an extensive refurbishment to compensate for the ageing of the installation, the reactor was restarted in April 1997. Various aspects concerning the operation of the BR2 Reactor, the utilisation of the CALLISTO loop and the irradiation programme, the BR2 R and D programme and the production of isotopes and of NTD-silicon are discussed. Progress and achievements in 1999 are reported.

  2. TRIGA reactor characteristics

    International Nuclear Information System (INIS)

    Boeck, H.; Villa, M.

    2007-01-01

    This module describes the general design, characteristics and parameters of TRIGA reactors and fuels. It is recommended that most of this information should be incorporated into any reactor operator training program and, in many cases, the facility Safety Analysis Report. It is oriented to teach the basics of the physics and mechanical design of the TRIGA fuel as well as its unique operational characteristics and the differences between TRIGA fuels and others more traditional reactor fuels. (nevyjel)

  3. The replacement research reactor

    International Nuclear Information System (INIS)

    Cameron, R.

    1999-01-01

    As a consequences of the government decision in September 1997. ANSTO established a replacement research reactor project to manage the procurement of the replacement reactor through the necessary approval, tendering and contract management stages This paper provides an update of the status of the project including the completion of the Environmental Impact Statement. Prequalification and Public Works Committee processes. The aims of the project, management organisation, reactor type and expected capabilities are also described

  4. The Integral Fast Reactor

    International Nuclear Information System (INIS)

    Chang, Y.I.

    1988-01-01

    The Integral Fast Reactor (IFR) is an innovative liquid metal reactor concept being developed at Argonne National Laboratory. It seeks to specifically exploit the inherent properties of liquid metal cooling and metallic fuel in a way that leads to substantial improvements in the characteristics of the complete reactor system. This paper describes the key features and potential advantages of the IFR concept, with emphasis on its safety characteristics. 3 refs., 4 figs., 1 tab

  5. New reactor concepts

    International Nuclear Information System (INIS)

    Meskens, G.; Govaerts, P.; Baugnet, J.-M.; Delbrassine, A.

    1998-11-01

    The document gives a summary of new nuclear reactor concepts from a technological point of view. Belgium supports the development of the European Pressurized-Water Reactor, which is an evolutionary concept based on the European experience in Pressurized-Water Reactors. A reorientation of the Belgian choice for this evolutionary concept may be required in case that a decision is taken to burn plutonium, when the need for flexible nuclear power plants arises or when new reactor concepts can demonstrate proved benefits in terms of safety and cost

  6. Remote Reactor Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Bernstein, Adam [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Dazeley, Steve [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Dobie, Doug [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Marleau, Peter [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Brennan, Jim [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Gerling, Mark [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sumner, Matthew [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sweany, Melinda [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-10-21

    The overall goal of the WATCHMAN project is to experimentally demonstrate the potential of water Cerenkov antineutrino detectors as a tool for remote monitoring of nuclear reactors. In particular, the project seeks to field a large prototype gadolinium-doped, water-based antineutrino detector to demonstrate sensitivity to a power reactor at ~10 kilometer standoff using a kiloton scale detector. The technology under development, when fully realized at large scale, could provide remote near-real-time information about reactor existence and operational status for small operating nuclear reactors out to distances of many hundreds of kilometers.

  7. Mirror fusion reactors

    International Nuclear Information System (INIS)

    Anon.

    1978-01-01

    Conceptual design studies were made of fusion reactors based on the three current mirror-confinement concepts: the standard mirror, the tandem mirror, and the field-reversed mirror. Recent studies of the standard mirror have emphasized its potential as a fusion-fission hybrid reactor, designed to produce fuel for fission reactors. We have designed a large commercial hybrid and a small pilot-plant hybrid based on standard mirror confinement. Tandem mirror designs include a commercial 1000-MWe fusion power plant and a nearer term tandem mirror hybrid. Field-reversed mirror designs include a multicell commercial reactor producing 75 MWe and a single-cell pilot plant

  8. Multi purpose research reactor

    International Nuclear Information System (INIS)

    Raina, V.K.; Sasidharan, K.; Sengupta, Samiran; Singh, Tej

    2006-01-01

    At present Dhruva and Cirus reactors provide the majority of research reactor based facilities to cater to the various needs of a vast pool of researchers in the field of material sciences, physics, chemistry, bio sciences, research and development work for nuclear power plants and production of radio isotopes. With a view to further consolidate and expand the scope of research and development in nuclear and allied sciences, a new 20 MWt multi purpose research reactor is being designed. This paper describes some of the design features and safety aspects of this reactor

  9. Trench reactor: an overview

    International Nuclear Information System (INIS)

    Spinrad, B.I.; Rohach, A.F.; Razzaque, M.M.; Sankoorikal, J.T.; Schmidt, R.S.; Lofshult, J.; Ramin, T.; Sokmen, N.; Lin, L.C.

    1988-01-01

    Recent fast, sodium-cooled reactor designs reflect new conditions. In nuclear energy these conditions are (a) emphasis on maintainability and operability, (b) design for more transparent safety, and (c) a surplus of uranium and enrichment availability that eases concerns about light water reactor fueling costs. In utility practice the demand is for less capital exposure, short construction time, smaller new unit sizes, and low capital cost. The PRISM, SAFR, and integral fast reactor (IFR) concepts are responses to these conditions. Fast reactors will not soon be deployed commercially, so more radical designs can be considered. The trench reactor is the product of such thinking. Its concepts are intended as contributions to the literature, which may be picked up by one of the existing programs or used in a new experimental project. The trench reactor is a thin-slab, pool-type reactor operated at very low power density and- for sodium-modest temperature. The thin slab is repeated in the sodium tank and the reactor core. The low power density permits a longer than conventional core height and a large-diameter fuel pin. Control is by borated steel slabs that can be lowered between the core and lateral sodium reflector. Shutdown is by semaphore slabs that can be swung into place just outside the control slabs. The paper presents major characteristics of the trench reactor that have been changed since the last report

  10. Fusion Reactor Materials

    International Nuclear Information System (INIS)

    Decreton, M.

    2002-01-01

    The objective of SCK-CEN's programme on fusion reactor materials is to contribute to the knowledge on the radiation-induced behaviour of fusion reactor materials and components as well as to help the international community in building the scientific and technical basis needed for the construction of the future reactor. Ongoing projects include: the study of the mechanical and chemical (corrosion) behaviour of structural materials under neutron irradiation and water coolant environment; the investigation of the characteristics of irradiated first wall material such as beryllium; investigations on the management of materials resulting from the dismantling of fusion reactors including waste disposal. Progress and achievements in these areas in 2001 are discussed

  11. Nuclear reactor safety systems

    International Nuclear Information System (INIS)

    Ball, R.M.; Roberts, R.C.

    1980-01-01

    A safety system for shutting down a nuclear reactor under overload conditions is described. The system includes a series of parallel-connected computer memory type look-up tables each of which receives data on a particular reactor parameter and in each of which a precalculated functional value for that parameter is stored indicative of the percentage of maximum reactor load that the parameter contributes. The various functional values corresponding to the actual measured parameters are added together to provide a control signal used to shut down the reactor under overload conditions. (U.K.)

  12. Mirror fusion reactors

    International Nuclear Information System (INIS)

    Carlson, G.A.; Moir, R.W.

    1978-01-01

    We have carried out conceptual design studies of fusion reactors based on the three current mirror confinement concepts: the standard mirror, the tandem mirror, and the field-reversed mirror. Recent studies of the standard mirror have emphasized its potential as a fusion-fission hybrid reactor, designed to produce fission fuel for fission reactors. We have designed a large commercial hybrid based on standard mirror confinement, and also a small pilot plant hybrid. Tandem mirror designs include a commercial 1000 MWe fusion power plant and a nearer term tandem mirror hybrid. Field-reversed mirror designs include a multicell commercial reactor producing 75 MWe and a single cell pilot plant

  13. Nuclear reactor internals arrangement

    International Nuclear Information System (INIS)

    Frisch, E.; Andrews, H.N.

    1976-01-01

    A nuclear reactor internals arrangement is disclosed which facilitates reactor refueling. A reactor vessel and a nuclear core is utilized in conjunction with an upper core support arrangement having means for storing withdrawn control rods therein. The upper core support is mounted to the underside of the reactor vessel closure head so that upon withdrawal of the control rods into the upper core support, the closure head, the upper core support and the control rods are removed as a single unit thereby directly exposing the core for purposes of refueling

  14. Geochemical signature and phytoremediation of urban soil: a case in Barcelona city

    Science.gov (United States)

    Rodríguez-Bocanegra, Javier; Roca, Núria; Febrero, Anna; Bort, Jordi

    2016-04-01

    The cleanup of contaminated places with heavy metals is necessary, but environmental remediation strategies are often expensive and energy consuming. Thus, it is important to develop low-cost and environmentally friendly strategies. Phytoremediation-based technologies could provide a long-lasting solution. The study area is located in Sants, a neighbourhood in Barcelona city (Catalonia, Spain). This place was an industrial area in the last century, which was occupied by a metal smelting industry. Nowadays, the neighbours want to cultivate vegetables in this location, but the history of this area suggests that the soil is polluted by elevated concentrations of heavy metals. The aim of this work was to determine heavy metal concentration in: a) soil, to know the degree of the soil pollution; b) roots and leaves of two plant species, Brassica juncea as an accumulator plant and Solanum lycopersicum as a crop plant, to know the capacity of each species to accumulate metals, and c) drainage water, to evaluate the heavy metal mobility. The main pollutants are Cu, Pb and Zn with topsoil total concentrations about 1355, 2230 and 6239 mg•kg-1, respectively. The established background upper limits in this area in mg•kg-1 were: Cu 145, Pb 91 and Zn 326. The same soil elements for available fractions, extracted with DTPA, were slightly elevated (9.6, 5.8 and 6.7 % of total concentration). The environmental pollution implies great extractability, suggesting the plants in these soils have facility with potentially toxic elements absorption. Instead, the concentrations in subsoil are lower than in topsoil. The concentrations of Cu, Pb and Zn in the plants' leaves are greater in B. juncea 170 ± 52.7, 137 ± 46.3 and 2365 ± 860.4 mg•kg-1, than in S. lycopersicum 102.5 ± 7.1, 22.5 ± 1.3 and 1002 ± 85.2 mg•kg-1 respectively. Furthermore, they are also greater in roots than in leaves. All of them are lower than the threshold to be considered like a hyperaccumulator species

  15. Veintidós años de evolución de las desigualdades socioeconómicas en la mortalidad en la ciudad de Barcelona

    NARCIS (Netherlands)

    Dalmau-Bueno, Albert; García-Altés, Anna; Marí-Dell'olmo, Marc; Pérez, Katherine; Kunst, Anton E.; Borrell, Carme

    2010-01-01

    To analyze the trend in socioeconomic inequalities in all-cause mortality in Barcelona from 1983 to 2004. We performed an ecological study of trends over 4 cross-sections (1983-1988, 1989-1994, 1995-1999 and 2000-2004), with the basic health area (BHA) as the unit of analysis. The study population

  16. 14th EuCheMS International Conference on Chemistry and the Environment ICCE 2013: IEC-WTC, Barcelona, Spain, 25-28 June 2013.

    Science.gov (United States)

    Luis, Santiago V; Jover, Eric

    2014-10-01

    The 14th European Association of Chemical and Molecular Sciences (EuCheMS) International Conference on Chemistry and the Environment (ICCE 2013) took place on 25-28 June 2013 at the IEC and the WTC in Barcelona, Spain. The ICCE is a well-established biannual conference organized by the Division of Chemistry and the EuCheMS.

  17. Muusikamaailm : Lihavõttefestivalid Euroopas. Uus kontserdimaja avati Barcelonas. Johann Adolf Hasse ئ 300. Märtsikuu teisi tähtpäevi / Priit Kuusk

    Index Scriptorium Estoniae

    Kuusk, Priit, 1938-

    1999-01-01

    Lihavõttefestivalidest Salzburgis, Viinis ja Luzernis. kontsertidest, esinejatest. Barcelonas avatud uuest kontserdimajast L"Auditori. Helilooja 300. sünniaastapäeva puhul on mitmel pool Euroopas välja toodud tema ooperite uuslavastusi. Muusikute tähtpäevi märtsis 1999

  18. Reactor core monitor for nuclear reactor

    International Nuclear Information System (INIS)

    Azekura, Kazuo; Kurihara, Kunitoshi.

    1992-01-01

    The device of the present invention provides a various information of a wide adaptability, such as a power distribution, to an operator by determining a reactor core performance of the reactor by a performance calculation with improved accuracy. That is, a calculation means determines a neutron flux distribution of the reactor and coolant temperature based on the neutron flux distribution. A measuring means measures a cooled temperature of a reactor core inlet and a temperature at the exit of a fuel assembly. The result of coolant temperature by the measuring means and the result of the calculation by the calculation means are compared. The result of the calculation for the neutron flux distribution obtained by the calculation means is corrected based on the result of the comparison. The calculation means introduces calculation at higher accuracy by adopting two-dimensional balance in the fuel assembly. Further, a more accurate three-dimensional neutron diffusion calculation model is introduced in an on-line computer. Then, the accuracy of the calculation for the neutron flux distribution, power distribution, temperature distribution, etc. is improved. In view of the above, adaptability of a reactor core monitor is widened. (I.S.)

  19. Control de la tenacidad de los hormigones reforzados con fibras usando el ensayo de doble punzonamiento (ensayo barcelona Quality control of fiber reinforced concretes by mean of double punshing test (barcelona test

    Directory of Open Access Journals (Sweden)

    Sergio Carmona Malatesta

    2009-08-01

    Full Text Available Tradicionalmente, se utiliza el ensayo de vigas prismáticas sometidas a flexión para caracterizar la resistencia y el comportamiento en el régimen post fisuración del hormigón reforzado con fibras (HRF. Sin embargo, estos ensayos presentan una alta dispersión en sus resultados cuestionando su empleo para el control sistemático del HRF en obras; tienen, además el inconveniente de tratarse de ensayos complejos que requieren de probetas pesadas y de personal de laboratorio altamente calificado. Alternativamente, se ha propuesto el uso de otros ensayos normalizados de tracción directa e indirecta para realizar la caracterización de propiedades de los HRF, pero éstos han resultado ser muy complejos de ejecutar, sin obtener grandes mejoras en relación a la alta dispersión de los resultados. Con la finalidad de solucionar esta serie de inconvenientes, se ha propuesto el uso de un ensayo de tracción indirecta basado en una configuración del ensayo de doble punzonamiento, al que se ha denominado "Ensayo Barcelona". Este ensayo requiere de probetas de pequeñas dimensiones, con una alta superficie específica de fractura, permitiendo obtener valores representativos de la resistencia y de la tenacidad del material, con un coeficiente de variación de los resultados inferior al 13%, valor que es considerablemente menor a los alcanzados con otras metodologías experimentales. En este artículo se presentan los resultados de diferentes campañas experimentales, que permiten validar el uso del ensayo Barcelona como una metodología experimental adecuada para la sistemática caracterización del HRF en obras.Traditionally, flexural testing of prismatic beams is used to characterize the strength and behavior in post - cracking regime of fiber - reinforced concretes (FRC. These tests exhibit a high dispersion in their results, and therefore invalidate the use of such tests for the systematic control of FRCs works. Also, they have the disadvantage

  20. CASOS CONFIRMADOS DE DENGUE, CHIKUNGUNYA Y ZIKA EN BARCELONA CAPITAL DURANTE EL PERÍODO DE 2014 AL 2016

    Directory of Open Access Journals (Sweden)

    Roser González

    2017-01-01

    Full Text Available Las infecciones por arbovirus son un grupo de enfermeda - des cuya incidencia está aumentando y que suponen un problema importante para la salud pública. El objetivo de este estudio fue describir los casos detec - tados de arbovirosis en la ciudad de Barcelona y las actuaciones de vigilancia y control realizadas para reducir el riesgo de transmisión. Métodos: Estudio descriptivo transversal de casos confirmados de den - gue, chikungunya y Zika en Barcelona durante el período de 2014 al 2016. Los casos sospechosos detectados en la ciudad se notificaron al Servicio de Epidemiología de la Agencia de Salud Pública de Barcelona (ASPB, don - de se realizó una encuesta epidemiológica y, si procedía, se contactaba con el Servicio de Vigilancia y Control de Plagas Urbanas. Desde allí se realizó la inspección entomológica y se llevaron a cabo acciones de control y segui - miento. Se recogieron variables sociodemográficas, epidemiológicas, clínicas y entomológicas de los casos. Resultados: En 2014 se detectaron 50 casos de virus chikungunya y 20 de dengue, realizándose 25 inspecciones entomológicas en domicilios y 38 en la vía pública. En 2015 se detectaron 47 casos de chikungunya, 51 de dengue y 2 de Zika, realizándose 27 inspecciones entomológicas en domicilios y 80 en vía pública. En 2016 se detectaron 17 casos de chikungunya, 52 de dengue y 48 de Zika, realizándose 50 inspecciones entomológicas en domicilio y 103 en vía pública. No se detectó ningún caso autóctono. Conclusiones: Se observó un aumento creciente de los casos de arboviro - sis durante los 3 años de estudio. Se intensificaron progresivamente las actua - ciones de vigilancia y control vectorial (inspecciones, muestras recogidas....

  1. Los Juegos Olímpicos de Barcelona, 25 años después (2

    Directory of Open Access Journals (Sweden)

    Francesc Solanellas

    2017-06-01

    Full Text Available En el artículo inicial de la serie se realizó una primera aproximación al legado y al impacto de los Juegos Olímpicos de Barcelona realizados hace 25 años; en este segundo trabajo de revisión tratamos de profundizar en el impacto que estos tuvieron para la ciudad y el país. En el anterior, se llevó a cabo un análisis económico, social y deportivo de lo que se ha considerado el modelo Barcelona; ahora intentamos profundizar y sobre todo realizar análisis comparados con otros países para evaluar si ese impacto fue tan relevante como creíamos. Este análisis económico se basa en el estudio de variables tales como el número de turistas (incremento entre 1992 y 2015, el número de visitantes internacionales durante este periodo, el número de hoteles o el número de pasajeros recibidos. En el análisis deportivo se hace un exhaustivo análisis comparado de los resultados olímpicos obtenidos en diferentes sedes valorando la participación, el número y tipo de medallas, y la clasificación conseguida según el caso. Desde el punto de vista social, se profundiza en el deporte escolar valorando algunas de las variables de prácticas deportivas en las escuelas. De acuerdo con los resultados del anterior artículo, y después de un análisis en profundidad y comparado, se puede afirmar que el incremento del número de visitantes en los últimos 25 años en Barcelona es superior al de la mayoría de ciudades de referencia. A nivel deportivo también se aprecia que el número de medallas fue, proporcionalmente, mayor en España que en otros países organizadores

  2. [Assessment of the performance of sabbatical leave: Hospital Clínic i Provincial of Barcelona (1990-1991). Research Committee of the Hospital Clínic i Provincial of Barcelona].

    Science.gov (United States)

    Rodés, J; Trilla, A; Asenjo, M A; Grau, J

    1995-03-11

    The development of an evaluation protocol for assessing the scientific contribution and the impact on medical care of the sabbatical leaves granted in a large Spanish teaching hospital. The sabbatical leaves for all faculty staff of the Hospital Clínic i Provincial of Barcelona (HCPB) were analyzed since 1980 trough 1991. The scientific production analysis was done according to the impact factor (IF) score of the Science Citation Index. Descriptive statistical techniques as well as parametric and non-parametric tests were used for comparisons. A total of 52 sabbatical leaves was analyzed of all 60 leaves granted (87%). Mean duration of the leave was 7.94 +/- 3.86 months. The scientific production includes 89 original articles published in peer-reviewed medical journals, with a total score of 300.82 IF points (mean score: 5.78 +/- 7.12 IF points by leave). There were significant differences in the mean duration, number of papers published and IF points score by sabbatical leave between the Medicine, Surgery and Other Departments. In 16 cases (31%) there was a professional promotion following the sabbatical leave and in 20 cases (39%) an academic promotion. In 27 cases (60%) there was no promotion after the leave. Most of the faculty staff physicians (96%) are still employed in the same institution, and believe that the sabbatical leave has significantly contributed to their promotion (67%). A high percentage (94%) has also been able to develop afterwards the methods and techniques learned during the sabbatical leave. The experience of the Hospital Clinic of Barcelona in granting sabbatical leaves has been highly positive. The scientific performance of the individuals on leave is high. Our institution has been able to add and develop most of the techniques and methods learned overseas. The future of the sabbatical leaves in other Spanish Universities and Hospitals should be regarded as a high priority target. The performance of these leaves is supported by its

  3. Programa de Atención Psicológica para los alumnos de la Facultad de Medicina de la Universidad de Barcelona Psychological Care Program for the students of the Medical School of the University of Barcelona

    Directory of Open Access Journals (Sweden)

    Rosa Sender Romeo

    2007-12-01

    Full Text Available El Programa d´Atenció Psicològica de la Facultad de Medicina de Barcelona se desarrolló entre los años 1999 y 2003. Se razonan los motivos de su creación así como los aspectos específicos de pertenencia a una facultad de medicina. Se da cuenta de los trabajos de tipo asistencial realizados en el transcurso de ese periodo, así como de los trabajos de investigación correspondientes a la misma etapa o derivados de las líneas generales que se prolongaron con posterioridad al cierre del programa y que tienen su origen en la línea de trabajo del propio programa. Se analiza la conveniencia y el interés que puede atribuirse a este tipo de colaboraciones que pretenden valorar la etapa universitaria de los sujetos como la antesala de la vida laboral.Between 1999 and 2003 the program of the Barcelona UB Medical School Psychological Service was offered to the students. In this paper the reasons of its birth and specific linkage to the medical school are explained. An account is offered about the psychiatric and psychological are activity developed during this period, as well as the research projects which began during this time and were followed after the interruption of the care program. Finally the interest and convenience of these kind of programs are discussed, emphasizing the utility of considering the time spended at the university as the prelude of working life.

  4. RB Research nuclear reactor RB reactor, Annual report for 2000

    International Nuclear Information System (INIS)

    Milosevic, M.

    2000-12-01

    Report on RB reactor operation during 2000 contains 3 parts. Part one contains a brief description of reactor operation and reactor components, relevant dosimetry data and radiation protection issues, personnel and financial data. Part two is devoted to maintenance of the reactor components, namely, fuel, heavy water, reactor vessel, heavy water circulation system, absorption rods and heavy water level-meters, maintenance of electronic, mechanical, electrical and auxiliary equipment. Part three contains data concerned with reactor operation and utilization with a comprehensive list of publications resulting from experiments done at the RB reactor. It contains data about reactor operation during previous 14 years, i.e. from 1986 - 2000

  5. Technical specifications, Hanford production reactors

    Energy Technology Data Exchange (ETDEWEB)

    Gilbert, W.D. [comp.

    1962-06-25

    These technical specifications are applicable to the eight operating production reactor facilities, B, C, D, DR, F, H, KE, and KW. Covered are operating and performance restrictions and administrative procedures. Areas covered by the operating and performance restrictions are reactivity, reactor control and safety elements, power level, temperature and heat flux, reactor fuel loadings, reactor coolant systems, reactor confinement, test facilities, code compliance, and reactor scram set points. Administrative procedures include process control procedures, training programs, audits and inspections, and reports and records.

  6. A nuclear power reactor

    International Nuclear Information System (INIS)

    Borrman, B.E.; Broden, P.; Lundin, N.

    1979-12-01

    The invention consists of shock absorbing support beams fastened to the underside of the reactor tank lid of a BWR type reactor, whose purpose is to provide support to the steam separator and dryer unit against accelerations due to earthquakes, without causing undue thermal stresses in the unit due to differential expansion. (J.I.W.)

  7. Reactor cost driving items

    International Nuclear Information System (INIS)

    Spears, W.R.

    1987-01-01

    Assuming that the design solutions presently perceived for NET can be extrapolated for use in a power reactor, and using costing experience with present day fusion experiments and with fission power plants, the major components of the cost of a tokamak fusion power reactor are described. The analysis shows the emphasis worth placing on various areas of plant design to reduce costs

  8. Reactor Materials Research

    International Nuclear Information System (INIS)

    Van Walle, E.

    2001-01-01

    The activities of the Reactor Materials Research Department of the Belgian Nuclear Research Centre SCK-CEN in 2000 are summarised. The programmes within the department are focussed on studies concerning (1) fusion, in particular mechanical testing; (2) Irradiation Assisted Stress Corrosion Cracking (IASCC); (3) nuclear fuel; and (4) Reactor Pressure Vessel Steel (RPVS)

  9. CAREM 25 nuclear reactor

    International Nuclear Information System (INIS)

    Rossini, A.A.; Ordonez, J.P.; Rajoy, J.E.; Durione, C.

    1990-01-01

    This work describes the CAREM project reactor, its design philosophy, its main characteristics and its advantages with respect to similar reactors. The main objective is to use the nuclear energy at lower costs than those applied up to now. (Author) [es

  10. Molten salt reactor concept

    International Nuclear Information System (INIS)

    Sood, D.D.

    1980-01-01

    Molten salt reactor is an advanced breeder concept which is suited for the utilization of thorium for nuclear power production. This reactor is based on the use of solutions of uranium or plutonium fluorides in LiF-BeF 2 -ThF 4 as fuel. Unlike the conventional reactors, no external coolant is used in the reactor core and the fuel salt itself is circulated through heat exchangers to transfer the fission produced heat to a secondary salt (NaF-NaBF 4 ) for steam generation. A part of the fuel stream is continuously processed to isolate 233 Pa, so that it can decay to fissile 233 U without getting converted to 234 Pa, and for the removal of neutron absorbing fission products. This on-line processing scheme makes this reactor concept to achieve a breeding ratio of 1.07 which is the highest for any thermal breeder reactor. Experimental studies at the Bhabha Atomic Research Centre, Bombay, have established the use of plutonium as fuel for this reactor. This molten salt reactor concept is described and the work conducted at the Bhabha Atomic Research Centre is summarised. (auth.)

  11. International thermal reactor development

    International Nuclear Information System (INIS)

    Zebroski, E.L.

    1977-01-01

    The worldwide development of nuclear power plants is reviewed. Charts are presented which show the commitment to light-water reactor capacity construction with breakdown by region and country. Additional charts show the major nuclear research centers which have substantial scope in light water reactor development and extensive international activities

  12. The fusion reactor

    International Nuclear Information System (INIS)

    Brennan, M.H.

    1974-01-01

    Basic principles of the fusion reactor are outlined. Plasma heating and confinement schemes are described. These confinement systems include the linear Z pinch, magnetic mirrors and Tokamaks. A fusion reactor is described and a discussion is given of its environmental impact and its fuel situation. (R.L.)

  13. Advanced converter reactors

    International Nuclear Information System (INIS)

    Kasten, P.R.

    1979-01-01

    Advanced converter reactors (ACRs) of primary US interest are those which can be commercialized within about 20 years, and are: Advanced Light-Water Reactors, Spectral-Shift-Control Reactors, Heavy-Water Reactors (CANDU type), and High-Temperature Gas-Cooled Reactors. These reactors can operate on uranium, thorium, or uranium-thorium fuel cycles, but have the greatest fuel utilization on thorium type cycles. The water reactors tend to operate more economically on uranium cycles, while the HTGR is more economical on thorium cycles. Thus, the HTGR had the greatest practical potential for improving fuel utilization. If the US has 3.4 to 4 million tons U 3 O 8 at reasonable costs, ACRs can make important contributions to maintaining a high nuclear power level for many decades; further, they work well with fast breeder reactors in the long term under symbiotic fueling conditions. Primary nuclear data needs of ACRs are integral measurements of reactivity coefficients and resonance absorption integrals

  14. Reactor Materials Research

    Energy Technology Data Exchange (ETDEWEB)

    Van Walle, E

    2001-04-01

    The activities of the Reactor Materials Research Department of the Belgian Nuclear Research Centre SCK-CEN in 2000 are summarised. The programmes within the department are focussed on studies concerning (1) fusion, in particular mechanical testing; (2) Irradiation Assisted Stress Corrosion Cracking (IASCC); (3) nuclear fuel; and (4) Reactor Pressure Vessel Steel (RPVS)

  15. Space Nuclear Reactor Engineering

    Energy Technology Data Exchange (ETDEWEB)

    Poston, David Irvin [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-06

    We needed to find a space reactor concept that could be attractive to NASA for flight and proven with a rapid turnaround, low-cost nuclear test. Heat-pipe-cooled reactors coupled to Stirling engines long identified as the easiest path to near-term, low-cost concept.

  16. The Integral Fast Reactor

    International Nuclear Information System (INIS)

    Till, C.E.; Chang, Y.I.; Lineberry, M.J.

    1990-01-01

    Argonne National Laboratory, since 1984, has been developing the Integral Fast Reactor (IFR). This paper will describe the way in which this new reactor concept came about; the technical, public acceptance, and environmental issues that are addressed by the IFR; the technical progress that has been made; and our expectations for this program in the near term. 5 refs., 3 figs

  17. Nuclear reactor instrumentation method

    International Nuclear Information System (INIS)

    Handa, Hiroyuki; Hayashi, Katsumi; Nemesawa, Shigeki; Nemoto, Yuji; Ohashi, Masahisa.

    1993-01-01

    The present invention can appropriately monitor the state of a reactor core in an FBR type reactor which has a system of storing spent fuel assemblies in a reactor container while reducing the weight and making the structure compact in the reactor. That is, a fuel assembly having a shield lacking portion in upper axial shields is disposed. The shield lacking portion defines neutrons' leaking path from the reactor core. The leakage of neutrons from the path is detected by a neutron monitor disposed just above the fuel assembly. With such a constitution, influence of neutrons from stored spent fuel assemblies disposed to the out side of the radial shields can be reduced by a shielding effect of the existent radial shields around the reactor core. Further, if a shield lacking portion is locally disposed in the region of the upper axial shields just below the neutron monitor, neutrons from the reactor core can be monitored while suppressing excessive neutron leakage. As a result, it is unnecessary to dispose shields on the outer side of the spent fuel assembly disposed in the reactor core. (I.S.)

  18. Reactor building for a nuclear reactor

    International Nuclear Information System (INIS)

    Haidlen, F.

    1976-01-01

    The invention concerns the improvement of the design of a liner, supported by a latticed steel girder structure and destined for guaranteeing a gastight closure for the plant compartments in the reactor building of a pressurized water reactor. It is intended to provide the steel girder structure on their top side with grates, being suited for walking upon, and to hang on their lower side diaphragms in modular construction as a liner. At the edges they may be sealed with bellows in order to avoid thermal stresses. The steel girder structure may at the same time serve as supports for parts of the steam pipe. (RW) [de

  19. Reactor coolant pump for a nuclear reactor

    International Nuclear Information System (INIS)

    Burkhardt, W.; Richter, G.

    1976-01-01

    An improvement is proposed concerning the easier disengagement of the coupling at the reactor coolant pump for a nuclear reactor transporting a pressurized coolant. According to the invention the disengaging coupling consists of two parts separated by screws. At least one of the screws contains a propellent charge ananged within a bore and provided with a speed-dependent ignition device in such a way that by separation of the screws at overspeeds the coupling is disengaged. The sub-claims are concerned with the kind of ignition ot the propellent charge. (UWI) [de

  20. HIV vaccine trial willingness among injection and non-injection drug users in two urban centres, Barcelona and San Francisco.

    Science.gov (United States)

    Etcheverry, M Florencia; Lum, Paula J; Evans, Jennifer L; Sanchez, Emilia; de Lazzari, Elisa; Mendez-Arancibia, Eva; Sierra, Ernesto; Gatell, José M; Page, Kimberly; Joseph, Joan

    2011-02-24

    Being able to recruit high-risk volunteers who are also willing to consider future participation in vaccine trials are critical features of vaccine preparedness studies. We described data from two cohorts of injection- and non-injection drug users in Barcelona, Spain [Red Cross centre] and in San Francisco, USA, [UFO-VAX study] at high risk of HIV/HCV infection to assess behaviour risk exposure and willingness to participate in future preventive HIV vaccine trials. We successfully identified drug-using populations that would be eligible for future HIV vaccine efficacy trials, based on reported levels of risk during screening and high levels of willingness to participate. In both groups, Red Cross and UFO-VAX respectively, HCV infection was highly prevalent at baseline (41% and 34%), HIV baseline seroprevalence was 4.2% and 1.5%, and high levels of willingness were seen (83% and 78%). Copyright © 2011 Elsevier Ltd. All rights reserved.